http://vjbo.osa.org Virtual Journal for Biomedical Optics Fri, 26 Feb 2010 00:00:00 EST http://metadata.osa.org/rss/infobase/images/OPN.gif http://vjbo.osa.org Optical Society of America © 2010 Optical Society of America 2010-03-14 http://www.opticsinfobase.org/abstract.cfm?URI=OPN-21-2-28 Patricia Daukantas<br/>Now that laser-assisted surgery for nearsightedness has become a routine elective procedure, ophthalmologists and vision scientists are branching out to other medical uses of lasers, from cataract surgery to diagnostic retinal imaging. [Virtual J. Biomed. Opt. 21, 28-33 (2010)] Fri, 26 Feb 2010 00:00:00 EST Lasers in Ophthalmology Patricia Daukantas Now that laser-assisted surgery for nearsightedness has become a routine elective procedure, ophthalmologists and vision scientists are branching out to other medical uses of lasers, from cataract surgery to diagnostic retinal imaging. Optical Society of America 2010-02-26 EN doi:10.1364/OPN.21.2.000028 Virtual Journal for Biomedical Optics, Vol. 21, Issue 2, pp. 28-33 © 2010 Optical Society of America http://www.opticsinfobase.org/abstract.cfm?URI=ol-35-3-426 Yang-Guo Li, Lei Liu, Franklin Amthor, Xin-Cheng Yao<br/>A rapid line-scan confocal imager was developed for functional imaging of the retina. In this imager, an acousto-optic deflector was employed to produce mechanical vibration- and inertia-free light scanning, and a high-speed (68,000 Hz) linear CCD camera was used to achieve subcellular and ... [Virtual J. Biomed. Opt. 35, 426-428 (2010)] Fri, 26 Feb 2010 00:00:00 EST High-speed line-scan confocal imaging of stimulus-evoked intrinsic optical signals in the retina Yang-Guo Li Lei Liu Franklin Amthor Xin-Cheng Yao A rapid line-scan confocal imager was developed for functional imaging of the retina. In this imager, an acousto-optic deflector was employed to produce mechanical vibration- and inertia-free light scanning, and a high-speed (68,000 Hz) linear CCD camera was used to achieve subcellular and ... Optical Society of America 2010-02-26 EN doi:10.1364/OL.35.000426 Virtual Journal for Biomedical Optics, Vol. 35, Issue 3, pp. 426-428 © 2010 Optical Society of America http://www.opticsinfobase.org/abstract.cfm?URI=ol-35-3-399 Ming Han, Fawen Guo, Yongfeng Lu<br/>We demonstrate an optical fiber refractometer based on a cladding-mode Bragg grating. It consists of a long-period grating (LPG) followed by a fiber Bragg grating (FBG). The LPG partially couples light from the core mode to a cladding mode, both of which are reflected by the FBG. Part of the ... [Virtual J. Biomed. Opt. 35, 399-401 (2010)] Fri, 26 Feb 2010 00:00:00 EST Optical fiber refractometer based on cladding-mode Bragg grating Ming Han Fawen Guo Yongfeng Lu We demonstrate an optical fiber refractometer based on a cladding-mode Bragg grating. It consists of a long-period grating (LPG) followed by a fiber Bragg grating (FBG). The LPG partially couples light from the core mode to a cladding mode, both of which are reflected by the FBG. Part of the ... Optical Society of America 2010-02-26 EN doi:10.1364/OL.35.000399 Virtual Journal for Biomedical Optics, Vol. 35, Issue 3, pp. 399-401 © 2010 Optical Society of America http://www.opticsinfobase.org/abstract.cfm?URI=ao-49-4-752 Wei Gong, Ke Si, Colin J. R. Sheppard<br/>We present a diffraction analysis for image formation in fluorescence confocal microscopy with divided apertures. The three-dimensional optical transform function is given, and axial resolution and transverse resolution are investigated. The results show that the employment of a divided-aperture ... [Virtual J. Biomed. Opt. 49, 752-757 (2010)] Fri, 26 Feb 2010 00:00:00 EST Divided-aperture technique for fluorescence confocal microscopy through scattering media Wei Gong Ke Si Colin J. R. Sheppard We present a diffraction analysis for image formation in fluorescence confocal microscopy with divided apertures. The three-dimensional optical transform function is given, and axial resolution and transverse resolution are investigated. The results show that the employment of a divided-aperture ... Optical Society of America 2010-02-26 EN doi:10.1364/AO.49.000752 Virtual Journal for Biomedical Optics, Vol. 49, Issue 4, pp. 752-757 © 2010 Optical Society of America http://www.opticsinfobase.org/abstract.cfm?URI=ol-35-3-426 Yang-Guo Li, Lei Liu, Franklin Amthor, Xin-Cheng Yao<br/>A rapid line-scan confocal imager was developed for functional imaging of the retina. In this imager, an acousto-optic deflector was employed to produce mechanical vibration- and inertia-free light scanning, and a high-speed (68,000 Hz) linear CCD camera was used to achieve subcellular and ... [Virtual J. Biomed. Opt. 35, 426-428 (2010)] Fri, 26 Feb 2010 00:00:00 EST High-speed line-scan confocal imaging of stimulus-evoked intrinsic optical signals in the retina Yang-Guo Li Lei Liu Franklin Amthor Xin-Cheng Yao A rapid line-scan confocal imager was developed for functional imaging of the retina. In this imager, an acousto-optic deflector was employed to produce mechanical vibration- and inertia-free light scanning, and a high-speed (68,000 Hz) linear CCD camera was used to achieve subcellular and ... Optical Society of America 2010-02-26 EN doi:10.1364/OL.35.000426 Virtual Journal for Biomedical Optics, Vol. 35, Issue 3, pp. 426-428 © 2010 Optical Society of America http://www.opticsinfobase.org/abstract.cfm?URI=ol-35-3-429 Haijing Niu, Fenghua Tian, Zi-Jing Lin, Hanli Liu<br/>Diffuse optical tomography endures poor depth localization, since its sensitivity decreases severely with increased depth. In this study, we demonstrate a depth compensation algorithm (DCA), which optimally counterbalances the decay nature of light propagation in tissue so as to accurately localize ... [Virtual J. Biomed. Opt. 35, 429-431 (2010)] Fri, 26 Feb 2010 00:00:00 EST Development of a compensation algorithm for accurate depth localization in diffuse optical tomography Haijing Niu Fenghua Tian Zi-Jing Lin Hanli Liu Diffuse optical tomography endures poor depth localization, since its sensitivity decreases severely with increased depth. In this study, we demonstrate a depth compensation algorithm (DCA), which optimally counterbalances the decay nature of light propagation in tissue so as to accurately localize ... Optical Society of America 2010-02-26 EN doi:10.1364/OL.35.000429 Virtual Journal for Biomedical Optics, Vol. 35, Issue 3, pp. 429-431 © 2010 Optical Society of America http://www.opticsinfobase.org/abstract.cfm?URI=ao-49-4-752 Wei Gong, Ke Si, Colin J. R. Sheppard<br/>We present a diffraction analysis for image formation in fluorescence confocal microscopy with divided apertures. The three-dimensional optical transform function is given, and axial resolution and transverse resolution are investigated. The results show that the employment of a divided-aperture ... [Virtual J. Biomed. Opt. 49, 752-757 (2010)] Fri, 26 Feb 2010 00:00:00 EST Divided-aperture technique for fluorescence confocal microscopy through scattering media Wei Gong Ke Si Colin J. R. Sheppard We present a diffraction analysis for image formation in fluorescence confocal microscopy with divided apertures. The three-dimensional optical transform function is given, and axial resolution and transverse resolution are investigated. The results show that the employment of a divided-aperture ... Optical Society of America 2010-02-26 EN doi:10.1364/AO.49.000752 Virtual Journal for Biomedical Optics, Vol. 49, Issue 4, pp. 752-757 © 2010 Optical Society of America http://www.opticsinfobase.org/abstract.cfm?URI=ol-35-3-429 Haijing Niu, Fenghua Tian, Zi-Jing Lin, Hanli Liu<br/>Diffuse optical tomography endures poor depth localization, since its sensitivity decreases severely with increased depth. In this study, we demonstrate a depth compensation algorithm (DCA), which optimally counterbalances the decay nature of light propagation in tissue so as to accurately localize ... [Virtual J. Biomed. Opt. 35, 429-431 (2010)] Fri, 26 Feb 2010 00:00:00 EST Development of a compensation algorithm for accurate depth localization in diffuse optical tomography Haijing Niu Fenghua Tian Zi-Jing Lin Hanli Liu Diffuse optical tomography endures poor depth localization, since its sensitivity decreases severely with increased depth. In this study, we demonstrate a depth compensation algorithm (DCA), which optimally counterbalances the decay nature of light propagation in tissue so as to accurately localize ... Optical Society of America 2010-02-26 EN doi:10.1364/OL.35.000429 Virtual Journal for Biomedical Optics, Vol. 35, Issue 3, pp. 429-431 © 2010 Optical Society of America http://www.opticsinfobase.org/abstract.cfm?URI=ol-35-3-447 Shan Shan Kou, Laura Waller, George Barbastathis, Colin J. R. Sheppard<br/>Differential interference contrast (DIC) microscopy is an inherently qualitative phase-imaging technique. What is obtained is an image with mixed phase-gradient and amplitude information rather than a true linear mapping of actual optical path length (OPL) differences. Here we investigate an ... [Virtual J. Biomed. Opt. 35, 447-449 (2010)] Fri, 26 Feb 2010 00:00:00 EST Transport-of-intensity approach to differential interference contrast (TI-DIC) microscopy for quantitative phase imaging Shan Shan Kou Laura Waller George Barbastathis Colin J. R. Sheppard Differential interference contrast (DIC) microscopy is an inherently qualitative phase-imaging technique. What is obtained is an image with mixed phase-gradient and amplitude information rather than a true linear mapping of actual optical path length (OPL) differences. Here we investigate an ... Optical Society of America 2010-02-26 EN doi:10.1364/OL.35.000447 Virtual Journal for Biomedical Optics, Vol. 35, Issue 3, pp. 447-449 © 2010 Optical Society of America http://www.opticsinfobase.org/abstract.cfm?URI=ol-35-3-381 Laureen Mangot, Gregory Taupier, Michelangelo Romeo, Alex Boeglin, Olivier Cregut, Kokou D. (Honorat) Dorkenoo<br/>We perform time-resolved broadband transmission ellipsometry using the ultrafast pump-probe technique in an original setup. Our setup allows us to measure, over a wide spectral range, the optical rotary dispersion of the sample or, when needed, its circular dichroism by adding a broadband ... [Virtual J. Biomed. Opt. 35, 381-383 (2010)] Fri, 26 Feb 2010 00:00:00 EST Broadband transient dichroism spectroscopy in chiral molecules Laureen Mangot Gregory Taupier Michelangelo Romeo Alex Boeglin Olivier Cregut Kokou D. (Honorat) Dorkenoo We perform time-resolved broadband transmission ellipsometry using the ultrafast pump-probe technique in an original setup. Our setup allows us to measure, over a wide spectral range, the optical rotary dispersion of the sample or, when needed, its circular dichroism by adding a broadband ... Optical Society of America 2010-02-26 EN doi:10.1364/OL.35.000381 Virtual Journal for Biomedical Optics, Vol. 35, Issue 3, pp. 381-383 © 2010 Optical Society of America http://www.opticsinfobase.org/abstract.cfm?URI=ol-35-3-426 Yang-Guo Li, Lei Liu, Franklin Amthor, Xin-Cheng Yao<br/>A rapid line-scan confocal imager was developed for functional imaging of the retina. In this imager, an acousto-optic deflector was employed to produce mechanical vibration- and inertia-free light scanning, and a high-speed (68,000 Hz) linear CCD camera was used to achieve subcellular and ... [Virtual J. Biomed. Opt. 35, 426-428 (2010)] Fri, 26 Feb 2010 00:00:00 EST High-speed line-scan confocal imaging of stimulus-evoked intrinsic optical signals in the retina Yang-Guo Li Lei Liu Franklin Amthor Xin-Cheng Yao A rapid line-scan confocal imager was developed for functional imaging of the retina. In this imager, an acousto-optic deflector was employed to produce mechanical vibration- and inertia-free light scanning, and a high-speed (68,000 Hz) linear CCD camera was used to achieve subcellular and ... Optical Society of America 2010-02-26 EN doi:10.1364/OL.35.000426 Virtual Journal for Biomedical Optics, Vol. 35, Issue 3, pp. 426-428 © 2010 Optical Society of America http://www.opticsinfobase.org/abstract.cfm?URI=ol-35-3-426 Yang-Guo Li, Lei Liu, Franklin Amthor, Xin-Cheng Yao<br/>A rapid line-scan confocal imager was developed for functional imaging of the retina. In this imager, an acousto-optic deflector was employed to produce mechanical vibration- and inertia-free light scanning, and a high-speed (68,000 Hz) linear CCD camera was used to achieve subcellular and ... [Virtual J. Biomed. Opt. 35, 426-428 (2010)] Fri, 26 Feb 2010 00:00:00 EST High-speed line-scan confocal imaging of stimulus-evoked intrinsic optical signals in the retina Yang-Guo Li Lei Liu Franklin Amthor Xin-Cheng Yao A rapid line-scan confocal imager was developed for functional imaging of the retina. In this imager, an acousto-optic deflector was employed to produce mechanical vibration- and inertia-free light scanning, and a high-speed (68,000 Hz) linear CCD camera was used to achieve subcellular and ... Optical Society of America 2010-02-26 EN doi:10.1364/OL.35.000426 Virtual Journal for Biomedical Optics, Vol. 35, Issue 3, pp. 426-428 © 2010 Optical Society of America http://www.opticsinfobase.org/abstract.cfm?URI=ol-35-3-447 Shan Shan Kou, Laura Waller, George Barbastathis, Colin J. R. Sheppard<br/>Differential interference contrast (DIC) microscopy is an inherently qualitative phase-imaging technique. What is obtained is an image with mixed phase-gradient and amplitude information rather than a true linear mapping of actual optical path length (OPL) differences. Here we investigate an ... [Virtual J. Biomed. Opt. 35, 447-449 (2010)] Fri, 26 Feb 2010 00:00:00 EST Transport-of-intensity approach to differential interference contrast (TI-DIC) microscopy for quantitative phase imaging Shan Shan Kou Laura Waller George Barbastathis Colin J. R. Sheppard Differential interference contrast (DIC) microscopy is an inherently qualitative phase-imaging technique. What is obtained is an image with mixed phase-gradient and amplitude information rather than a true linear mapping of actual optical path length (OPL) differences. Here we investigate an ... Optical Society of America 2010-02-26 EN doi:10.1364/OL.35.000447 Virtual Journal for Biomedical Optics, Vol. 35, Issue 3, pp. 447-449 © 2010 Optical Society of America http://www.opticsinfobase.org/abstract.cfm?URI=ol-35-3-426 Yang-Guo Li, Lei Liu, Franklin Amthor, Xin-Cheng Yao<br/>A rapid line-scan confocal imager was developed for functional imaging of the retina. In this imager, an acousto-optic deflector was employed to produce mechanical vibration- and inertia-free light scanning, and a high-speed (68,000 Hz) linear CCD camera was used to achieve subcellular and ... [Virtual J. Biomed. Opt. 35, 426-428 (2010)] Fri, 26 Feb 2010 00:00:00 EST High-speed line-scan confocal imaging of stimulus-evoked intrinsic optical signals in the retina Yang-Guo Li Lei Liu Franklin Amthor Xin-Cheng Yao A rapid line-scan confocal imager was developed for functional imaging of the retina. In this imager, an acousto-optic deflector was employed to produce mechanical vibration- and inertia-free light scanning, and a high-speed (68,000 Hz) linear CCD camera was used to achieve subcellular and ... Optical Society of America 2010-02-26 EN doi:10.1364/OL.35.000426 Virtual Journal for Biomedical Optics, Vol. 35, Issue 3, pp. 426-428 © 2010 Optical Society of America http://www.opticsinfobase.org/abstract.cfm?URI=oe-18-3-3023 Christian Maurer, Saranjam Khan, Stephanie Fassl, Stefan Bernet, Monika Ritsch-Marte<br/>We demonstrate ”depth of field multiplexing” by a high resolution spatial light modulator (SLM) in a Fourier plane in the imaging path of a standard microscope. This approach provides simultaneous imaging of different focal planes in a sample with only a single camera exposure. The ... [Virtual J. Biomed. Opt. 18, 3023-3034 (2010)] Fri, 26 Feb 2010 00:00:00 EST Depth of field multiplexing in microscopy Christian Maurer Saranjam Khan Stephanie Fassl Stefan Bernet Monika Ritsch-Marte We demonstrate ”depth of field multiplexing” by a high resolution spatial light modulator (SLM) in a Fourier plane in the imaging path of a standard microscope. This approach provides simultaneous imaging of different focal planes in a sample with only a single camera exposure. The ... Optical Society of America 2010-02-26 EN doi:10.1364/OE.18.003023 Virtual Journal for Biomedical Optics, Vol. 18, Issue 3, pp. 3023-3034 © 2010 Optical Society of America http://www.opticsinfobase.org/abstract.cfm?URI=oe-18-3-3116 Karsten Rebner, Michael Schmitz, Barbara Boldrini, Alwin Kienle, Dieter Oelkrug, R. W. Kessler<br/>Light scattering measurements of particle aggregates contain complex information which is difficult to decrypt. Dark-field scattering microscopy in the visible range is used to characterize multi-arranged polystyrene beads. First, measured light scattering spectra of single spheres are compared ... [Virtual J. Biomed. Opt. 18, 3116-3127 (2010)] Fri, 26 Feb 2010 00:00:00 EST Dark-field scattering microscopy for spectral characterization of polystyrene aggregates Karsten Rebner Michael Schmitz Barbara Boldrini Alwin Kienle Dieter Oelkrug R. W. Kessler Light scattering measurements of particle aggregates contain complex information which is difficult to decrypt. Dark-field scattering microscopy in the visible range is used to characterize multi-arranged polystyrene beads. First, measured light scattering spectra of single spheres are compared ... Optical Society of America 2010-02-26 EN doi:10.1364/OE.18.003116 Virtual Journal for Biomedical Optics, Vol. 18, Issue 3, pp. 3116-3127 © 2010 OSA http://www.opticsinfobase.org/abstract.cfm?URI=oe-18-3-3079 Christine P. Fleming, Kara J. Quan, Hui Wang, Guy Amit, Andrew M. Rollins<br/>Currently, cardiac radiofrequency ablation (RFA) is guided by indirect signals. We demonstrate optical coherence tomography (OCT) characterization of RFA lesions within swine ventricular wedges. Untreated tissue exhibited a consistent birefringence artifact within OCT images due to the organized ... [Virtual J. Biomed. Opt. 18, 3079-3092 (2010)] Fri, 26 Feb 2010 00:00:00 EST In vitro characterization of cardiac radiofrequency ablation lesions using optical coherence tomography Christine P. Fleming Kara J. Quan Hui Wang Guy Amit Andrew M. Rollins Currently, cardiac radiofrequency ablation (RFA) is guided by indirect signals. We demonstrate optical coherence tomography (OCT) characterization of RFA lesions within swine ventricular wedges. Untreated tissue exhibited a consistent birefringence artifact within OCT images due to the organized ... Optical Society of America 2010-02-26 EN doi:10.1364/OE.18.003079 Virtual Journal for Biomedical Optics, Vol. 18, Issue 3, pp. 3079-3092 © 2010 Optical Society of America http://www.opticsinfobase.org/abstract.cfm?URI=oe-18-3-3079 Christine P. Fleming, Kara J. Quan, Hui Wang, Guy Amit, Andrew M. Rollins<br/>Currently, cardiac radiofrequency ablation (RFA) is guided by indirect signals. We demonstrate optical coherence tomography (OCT) characterization of RFA lesions within swine ventricular wedges. Untreated tissue exhibited a consistent birefringence artifact within OCT images due to the organized ... [Virtual J. Biomed. Opt. 18, 3079-3092 (2010)] Fri, 26 Feb 2010 00:00:00 EST In vitro characterization of cardiac radiofrequency ablation lesions using optical coherence tomography Christine P. Fleming Kara J. Quan Hui Wang Guy Amit Andrew M. Rollins Currently, cardiac radiofrequency ablation (RFA) is guided by indirect signals. We demonstrate optical coherence tomography (OCT) characterization of RFA lesions within swine ventricular wedges. Untreated tissue exhibited a consistent birefringence artifact within OCT images due to the organized ... Optical Society of America 2010-02-26 EN doi:10.1364/OE.18.003079 Virtual Journal for Biomedical Optics, Vol. 18, Issue 3, pp. 3079-3092 © 2010 Optical Society of America http://www.opticsinfobase.org/abstract.cfm?URI=oe-18-3-3079 Christine P. Fleming, Kara J. Quan, Hui Wang, Guy Amit, Andrew M. Rollins<br/>Currently, cardiac radiofrequency ablation (RFA) is guided by indirect signals. We demonstrate optical coherence tomography (OCT) characterization of RFA lesions within swine ventricular wedges. Untreated tissue exhibited a consistent birefringence artifact within OCT images due to the organized ... [Virtual J. Biomed. Opt. 18, 3079-3092 (2010)] Fri, 26 Feb 2010 00:00:00 EST In vitro characterization of cardiac radiofrequency ablation lesions using optical coherence tomography Christine P. Fleming Kara J. Quan Hui Wang Guy Amit Andrew M. Rollins Currently, cardiac radiofrequency ablation (RFA) is guided by indirect signals. We demonstrate optical coherence tomography (OCT) characterization of RFA lesions within swine ventricular wedges. Untreated tissue exhibited a consistent birefringence artifact within OCT images due to the organized ... Optical Society of America 2010-02-26 EN doi:10.1364/OE.18.003079 Virtual Journal for Biomedical Optics, Vol. 18, Issue 3, pp. 3079-3092 © 2010 Optical Society of America http://www.opticsinfobase.org/abstract.cfm?URI=oe-18-3-2849 Babu Varghese, Vinayakrishnan Rajan, Ton G Van Leeuwen, Wiendelt Steenbergen<br/>Perfusion measurements using conventional laser Doppler techniques are affected by the variations in tissue optical properties. Differences in absorption and scattering will induce different path lengths and consequently will alter the probability that a Doppler shift will occur. In this study, the ... [Virtual J. Biomed. Opt. 18, 2849-2857 (2010)] Fri, 26 Feb 2010 00:00:00 EST Measurement of particle flux in a static matrix with suppressed influence of optical properties, using low coherence interferometry Babu Varghese Vinayakrishnan Rajan Ton G Van Leeuwen Wiendelt Steenbergen Perfusion measurements using conventional laser Doppler techniques are affected by the variations in tissue optical properties. Differences in absorption and scattering will induce different path lengths and consequently will alter the probability that a Doppler shift will occur. In this study, the ... Optical Society of America 2010-02-26 EN doi:10.1364/OE.18.002849 Virtual Journal for Biomedical Optics, Vol. 18, Issue 3, pp. 2849-2857 © 2010 OSA http://www.opticsinfobase.org/abstract.cfm?URI=oe-18-3-2913 B. Dusser, Z. Sagan, H. Soder, N. Faure, J.P. Colombier, M. Jourlin, E. Audouard<br/>Precise nanostructuration of surface and the subsequent upgrades in material properties is a strong outcome of ultra fast laser irradiations. Material characteristics can be designed on mesoscopic scales, carrying new optical properties. We demonstrate in this work, the possibility of achieving ... [Virtual J. Biomed. Opt. 18, 2913-2924 (2010)] Fri, 26 Feb 2010 00:00:00 EST Controlled nanostructrures formation by ultra fast laser pulses for color marking B. Dusser Z. Sagan H. Soder N. Faure J.P. Colombier M. Jourlin E. Audouard Precise nanostructuration of surface and the subsequent upgrades in material properties is a strong outcome of ultra fast laser irradiations. Material characteristics can be designed on mesoscopic scales, carrying new optical properties. We demonstrate in this work, the possibility of achieving ... Optical Society of America 2010-02-26 EN doi:10.1364/OE.18.002913 Virtual Journal for Biomedical Optics, Vol. 18, Issue 3, pp. 2913-2924 © 2010 OSA http://www.opticsinfobase.org/abstract.cfm?URI=ao-49-4-701 B. R. Boruah<br/>This article reports the design and implementation of a lateral resolution-enhancement technique in confocal microscopy that can work, in principle, either in the reflection mode or in the fluorescence mode. Taking the difference between two images corresponding to two different vectorially ... [Virtual J. Biomed. Opt. 49, 701-707 (2010)] Fri, 26 Feb 2010 00:00:00 EST Lateral resolution enhancement in confocal microscopy by vectorial aperture engineering B. R. Boruah This article reports the design and implementation of a lateral resolution-enhancement technique in confocal microscopy that can work, in principle, either in the reflection mode or in the fluorescence mode. Taking the difference between two images corresponding to two different vectorially ... Optical Society of America 2010-02-26 EN doi:10.1364/AO.49.000701 Virtual Journal for Biomedical Optics, Vol. 49, Issue 4, pp. 701-707 © 2010 Optical Society of America http://www.opticsinfobase.org/abstract.cfm?URI=oe-18-3-2858 Chulmin Joo, Conor L. Evans, Thomas Stepinac, Tayyaba Hasan, Johannes F. de Boer<br/>Quantitative measurement of diffusive and directional processes of intracellular structures is not only critical in understanding cell mechanics and functions, but also has many applications, such as investigation of cellular responses to therapeutic agents. We introduce a label-free optical ... [Virtual J. Biomed. Opt. 18, 2858-2871 (2010)] Fri, 26 Feb 2010 00:00:00 EST Diffusive and directional intracellular dynamics measured by field-based dynamic light scattering Chulmin Joo Conor L. Evans Thomas Stepinac Tayyaba Hasan Johannes F. de Boer Quantitative measurement of diffusive and directional processes of intracellular structures is not only critical in understanding cell mechanics and functions, but also has many applications, such as investigation of cellular responses to therapeutic agents. We introduce a label-free optical ... Optical Society of America 2010-02-26 EN doi:10.1364/OE.18.002858 Virtual Journal for Biomedical Optics, Vol. 18, Issue 3, pp. 2858-2871 © 2010 OSA http://www.opticsinfobase.org/abstract.cfm?URI=oe-18-3-2894 Hao Gao, Hongkai Zhao<br/>In this paper we study the regularization with both l1 and total-variation norm for bioluminescence tomography based on radiative transfer equation, compare l1 data fidelity with l2 data fidelity for different type of noise, and propose novel interior-point methods for solving related optimization ... [Virtual J. Biomed. Opt. 18, 2894-2912 (2010)] Fri, 26 Feb 2010 00:00:00 EST Multilevel bioluminescence tomography
based on radiative transfer equation
Part 2: total variation and l1 data fidelity Hao Gao Hongkai Zhao In this paper we study the regularization with both l1 and total-variation norm for bioluminescence tomography based on radiative transfer equation, compare l1 data fidelity with l2 data fidelity for different type of noise, and propose novel interior-point methods for solving related optimization ... Optical Society of America 2010-02-26 EN doi:10.1364/OE.18.002894 Virtual Journal for Biomedical Optics, Vol. 18, Issue 3, pp. 2894-2912 © 2010 OSA http://www.opticsinfobase.org/abstract.cfm?URI=oe-18-3-2858 Chulmin Joo, Conor L. Evans, Thomas Stepinac, Tayyaba Hasan, Johannes F. de Boer<br/>Quantitative measurement of diffusive and directional processes of intracellular structures is not only critical in understanding cell mechanics and functions, but also has many applications, such as investigation of cellular responses to therapeutic agents. We introduce a label-free optical ... [Virtual J. Biomed. Opt. 18, 2858-2871 (2010)] Fri, 26 Feb 2010 00:00:00 EST Diffusive and directional intracellular dynamics measured by field-based dynamic light scattering Chulmin Joo Conor L. Evans Thomas Stepinac Tayyaba Hasan Johannes F. de Boer Quantitative measurement of diffusive and directional processes of intracellular structures is not only critical in understanding cell mechanics and functions, but also has many applications, such as investigation of cellular responses to therapeutic agents. We introduce a label-free optical ... Optical Society of America 2010-02-26 EN doi:10.1364/OE.18.002858 Virtual Journal for Biomedical Optics, Vol. 18, Issue 3, pp. 2858-2871 © 2010 OSA http://www.opticsinfobase.org/abstract.cfm?URI=oe-18-3-2849 Babu Varghese, Vinayakrishnan Rajan, Ton G Van Leeuwen, Wiendelt Steenbergen<br/>Perfusion measurements using conventional laser Doppler techniques are affected by the variations in tissue optical properties. Differences in absorption and scattering will induce different path lengths and consequently will alter the probability that a Doppler shift will occur. In this study, the ... [Virtual J. Biomed. Opt. 18, 2849-2857 (2010)] Fri, 26 Feb 2010 00:00:00 EST Measurement of particle flux in a static matrix with suppressed influence of optical properties, using low coherence interferometry Babu Varghese Vinayakrishnan Rajan Ton G Van Leeuwen Wiendelt Steenbergen Perfusion measurements using conventional laser Doppler techniques are affected by the variations in tissue optical properties. Differences in absorption and scattering will induce different path lengths and consequently will alter the probability that a Doppler shift will occur. In this study, the ... Optical Society of America 2010-02-26 EN doi:10.1364/OE.18.002849 Virtual Journal for Biomedical Optics, Vol. 18, Issue 3, pp. 2849-2857 © 2010 OSA http://www.opticsinfobase.org/abstract.cfm?URI=oe-18-3-2894 Hao Gao, Hongkai Zhao<br/>In this paper we study the regularization with both l1 and total-variation norm for bioluminescence tomography based on radiative transfer equation, compare l1 data fidelity with l2 data fidelity for different type of noise, and propose novel interior-point methods for solving related optimization ... [Virtual J. Biomed. Opt. 18, 2894-2912 (2010)] Fri, 26 Feb 2010 00:00:00 EST Multilevel bioluminescence tomography
based on radiative transfer equation
Part 2: total variation and l1 data fidelity Hao Gao Hongkai Zhao In this paper we study the regularization with both l1 and total-variation norm for bioluminescence tomography based on radiative transfer equation, compare l1 data fidelity with l2 data fidelity for different type of noise, and propose novel interior-point methods for solving related optimization ... Optical Society of America 2010-02-26 EN doi:10.1364/OE.18.002894 Virtual Journal for Biomedical Optics, Vol. 18, Issue 3, pp. 2894-2912 © 2010 OSA http://www.opticsinfobase.org/abstract.cfm?URI=ol-35-3-369 Mark Niedre, Vasilis Ntziachristos<br/>The highly diffuse nature of light propagation in biological tissue is a major challenge for obtaining high-fidelity fluorescence tomographic images. In this work we investigated the use of time-gated detection of early-arriving photons for reducing the effects of light scatter in mice relative to ... [Virtual J. Biomed. Opt. 35, 369-371 (2010)] Fri, 26 Feb 2010 00:00:00 EST Comparison of fluorescence tomographic imaging in mice with early-arriving and quasi-continuous-wave photons Mark Niedre Vasilis Ntziachristos The highly diffuse nature of light propagation in biological tissue is a major challenge for obtaining high-fidelity fluorescence tomographic images. In this work we investigated the use of time-gated detection of early-arriving photons for reducing the effects of light scatter in mice relative to ... Optical Society of America 2010-02-26 EN doi:10.1364/OL.35.000369 Virtual Journal for Biomedical Optics, Vol. 35, Issue 3, pp. 369-371 © 2010 Optical Society of America http://www.opticsinfobase.org/abstract.cfm?URI=ol-35-3-369 Mark Niedre, Vasilis Ntziachristos<br/>The highly diffuse nature of light propagation in biological tissue is a major challenge for obtaining high-fidelity fluorescence tomographic images. In this work we investigated the use of time-gated detection of early-arriving photons for reducing the effects of light scatter in mice relative to ... [Virtual J. Biomed. Opt. 35, 369-371 (2010)] Fri, 26 Feb 2010 00:00:00 EST Comparison of fluorescence tomographic imaging in mice with early-arriving and quasi-continuous-wave photons Mark Niedre Vasilis Ntziachristos The highly diffuse nature of light propagation in biological tissue is a major challenge for obtaining high-fidelity fluorescence tomographic images. In this work we investigated the use of time-gated detection of early-arriving photons for reducing the effects of light scatter in mice relative to ... Optical Society of America 2010-02-26 EN doi:10.1364/OL.35.000369 Virtual Journal for Biomedical Optics, Vol. 35, Issue 3, pp. 369-371 © 2010 Optical Society of America http://www.opticsinfobase.org/abstract.cfm?URI=ol-35-3-369 Mark Niedre, Vasilis Ntziachristos<br/>The highly diffuse nature of light propagation in biological tissue is a major challenge for obtaining high-fidelity fluorescence tomographic images. In this work we investigated the use of time-gated detection of early-arriving photons for reducing the effects of light scatter in mice relative to ... [Virtual J. Biomed. Opt. 35, 369-371 (2010)] Fri, 26 Feb 2010 00:00:00 EST Comparison of fluorescence tomographic imaging in mice with early-arriving and quasi-continuous-wave photons Mark Niedre Vasilis Ntziachristos The highly diffuse nature of light propagation in biological tissue is a major challenge for obtaining high-fidelity fluorescence tomographic images. In this work we investigated the use of time-gated detection of early-arriving photons for reducing the effects of light scatter in mice relative to ... Optical Society of America 2010-02-26 EN doi:10.1364/OL.35.000369 Virtual Journal for Biomedical Optics, Vol. 35, Issue 3, pp. 369-371 © 2010 Optical Society of America http://www.opticsinfobase.org/abstract.cfm?URI=oe-18-3-2894 Hao Gao, Hongkai Zhao<br/>In this paper we study the regularization with both l1 and total-variation norm for bioluminescence tomography based on radiative transfer equation, compare l1 data fidelity with l2 data fidelity for different type of noise, and propose novel interior-point methods for solving related optimization ... [Virtual J. Biomed. Opt. 18, 2894-2912 (2010)] Fri, 26 Feb 2010 00:00:00 EST Multilevel bioluminescence tomography
based on radiative transfer equation
Part 2: total variation and l1 data fidelity Hao Gao Hongkai Zhao In this paper we study the regularization with both l1 and total-variation norm for bioluminescence tomography based on radiative transfer equation, compare l1 data fidelity with l2 data fidelity for different type of noise, and propose novel interior-point methods for solving related optimization ... Optical Society of America 2010-02-26 EN doi:10.1364/OE.18.002894 Virtual Journal for Biomedical Optics, Vol. 18, Issue 3, pp. 2894-2912 © 2010 OSA http://www.opticsinfobase.org/abstract.cfm?URI=oe-18-3-2858 Chulmin Joo, Conor L. Evans, Thomas Stepinac, Tayyaba Hasan, Johannes F. de Boer<br/>Quantitative measurement of diffusive and directional processes of intracellular structures is not only critical in understanding cell mechanics and functions, but also has many applications, such as investigation of cellular responses to therapeutic agents. We introduce a label-free optical ... [Virtual J. Biomed. Opt. 18, 2858-2871 (2010)] Fri, 26 Feb 2010 00:00:00 EST Diffusive and directional intracellular dynamics measured by field-based dynamic light scattering Chulmin Joo Conor L. Evans Thomas Stepinac Tayyaba Hasan Johannes F. de Boer Quantitative measurement of diffusive and directional processes of intracellular structures is not only critical in understanding cell mechanics and functions, but also has many applications, such as investigation of cellular responses to therapeutic agents. We introduce a label-free optical ... Optical Society of America 2010-02-26 EN doi:10.1364/OE.18.002858 Virtual Journal for Biomedical Optics, Vol. 18, Issue 3, pp. 2858-2871 © 2010 OSA http://www.opticsinfobase.org/abstract.cfm?URI=oe-18-3-2849 Babu Varghese, Vinayakrishnan Rajan, Ton G Van Leeuwen, Wiendelt Steenbergen<br/>Perfusion measurements using conventional laser Doppler techniques are affected by the variations in tissue optical properties. Differences in absorption and scattering will induce different path lengths and consequently will alter the probability that a Doppler shift will occur. In this study, the ... [Virtual J. Biomed. Opt. 18, 2849-2857 (2010)] Fri, 26 Feb 2010 00:00:00 EST Measurement of particle flux in a static matrix with suppressed influence of optical properties, using low coherence interferometry Babu Varghese Vinayakrishnan Rajan Ton G Van Leeuwen Wiendelt Steenbergen Perfusion measurements using conventional laser Doppler techniques are affected by the variations in tissue optical properties. Differences in absorption and scattering will induce different path lengths and consequently will alter the probability that a Doppler shift will occur. In this study, the ... Optical Society of America 2010-02-26 EN doi:10.1364/OE.18.002849 Virtual Journal for Biomedical Optics, Vol. 18, Issue 3, pp. 2849-2857 © 2010 OSA http://www.opticsinfobase.org/abstract.cfm?URI=ol-35-3-369 Mark Niedre, Vasilis Ntziachristos<br/>The highly diffuse nature of light propagation in biological tissue is a major challenge for obtaining high-fidelity fluorescence tomographic images. In this work we investigated the use of time-gated detection of early-arriving photons for reducing the effects of light scatter in mice relative to ... [Virtual J. Biomed. Opt. 35, 369-371 (2010)] Fri, 26 Feb 2010 00:00:00 EST Comparison of fluorescence tomographic imaging in mice with early-arriving and quasi-continuous-wave photons Mark Niedre Vasilis Ntziachristos The highly diffuse nature of light propagation in biological tissue is a major challenge for obtaining high-fidelity fluorescence tomographic images. In this work we investigated the use of time-gated detection of early-arriving photons for reducing the effects of light scatter in mice relative to ... Optical Society of America 2010-02-26 EN doi:10.1364/OL.35.000369 Virtual Journal for Biomedical Optics, Vol. 35, Issue 3, pp. 369-371 © 2010 Optical Society of America http://www.opticsinfobase.org/abstract.cfm?URI=oe-18-3-2782 Sergio Ortiz, Damian Siedlecki, Ireneusz Grulkowski, Laura Remon, Daniel Pascual, Maciej Wojtkowski, Susana Marcos<br/>A method for three-dimensional 3-D optical distortion (refraction) correction on anterior segment Optical Coherence Tomography (OCT) images has been developed. The method consists of 3-D ray tracing through the different surfaces, following denoising, segmentation of the surfaces, Delaunay ... [Virtual J. Biomed. Opt. 18, 2782-2796 (2010)] Fri, 26 Feb 2010 00:00:00 EST Optical distortion correction in Optical Coherence Tomography for quantitative ocular anterior segment by three-dimensional imaging Sergio Ortiz Damian Siedlecki Ireneusz Grulkowski Laura Remon Daniel Pascual Maciej Wojtkowski Susana Marcos A method for three-dimensional 3-D optical distortion (refraction) correction on anterior segment Optical Coherence Tomography (OCT) images has been developed. The method consists of 3-D ray tracing through the different surfaces, following denoising, segmentation of the surfaces, Delaunay ... Optical Society of America 2010-02-26 EN doi:10.1364/OE.18.002782 Virtual Journal for Biomedical Optics, Vol. 18, Issue 3, pp. 2782-2796 © 2010 OSA http://www.opticsinfobase.org/abstract.cfm?URI=oe-18-3-2760 Chao Tao, Xiaojun Liu<br/>The goal of this work is to resolve the limited-view problem of photoacoustic tomography (PAT). We report a two-loop iteration method to inverse the photoacoustic sources from the measured photoacoustic signals. PAT reconstruction with this method does not depend on the detection path. Therefore, ... [Virtual J. Biomed. Opt. 18, 2760-2766 (2010)] Fri, 26 Feb 2010 00:00:00 EST Reconstruction of high quality photoacoustic tomography with a limited-view scanning Chao Tao Xiaojun Liu The goal of this work is to resolve the limited-view problem of photoacoustic tomography (PAT). We report a two-loop iteration method to inverse the photoacoustic sources from the measured photoacoustic signals. PAT reconstruction with this method does not depend on the detection path. Therefore, ... Optical Society of America 2010-02-26 EN doi:10.1364/OE.18.002760 Virtual Journal for Biomedical Optics, Vol. 18, Issue 3, pp. 2760-2766 © 2010 OSA http://www.opticsinfobase.org/abstract.cfm?URI=ao-49-4-663 E. C. Lins, J. Belasque, Jr., L. G. Marcassa<br/>Citrus canker is a serious disease caused by Xanthomonas citri subsp. citri bacteria, which infects citrus plants (Citrus spp.) leading to large economic losses in citrus production worldwide. In this work, laser induced fluorescence spectroscopy (LIF) was investigated as a diagnostic technique for ... [Virtual J. Biomed. Opt. 49, 663-667 (2010)] Fri, 26 Feb 2010 00:00:00 EST Optical fiber laser induced fluorescence spectroscopy as a citrus canker diagnostic E. C. Lins J. Belasque Jr. L. G. Marcassa Citrus canker is a serious disease caused by Xanthomonas citri subsp. citri bacteria, which infects citrus plants (Citrus spp.) leading to large economic losses in citrus production worldwide. In this work, laser induced fluorescence spectroscopy (LIF) was investigated as a diagnostic technique for ... Optical Society of America 2010-02-26 EN doi:10.1364/AO.49.000663 Virtual Journal for Biomedical Optics, Vol. 49, Issue 4, pp. 663-667 © 2010 Optical Society of America http://www.opticsinfobase.org/abstract.cfm?URI=oe-18-3-2760 Chao Tao, Xiaojun Liu<br/>The goal of this work is to resolve the limited-view problem of photoacoustic tomography (PAT). We report a two-loop iteration method to inverse the photoacoustic sources from the measured photoacoustic signals. PAT reconstruction with this method does not depend on the detection path. Therefore, ... [Virtual J. Biomed. Opt. 18, 2760-2766 (2010)] Fri, 26 Feb 2010 00:00:00 EST Reconstruction of high quality photoacoustic tomography with a limited-view scanning Chao Tao Xiaojun Liu The goal of this work is to resolve the limited-view problem of photoacoustic tomography (PAT). We report a two-loop iteration method to inverse the photoacoustic sources from the measured photoacoustic signals. PAT reconstruction with this method does not depend on the detection path. Therefore, ... Optical Society of America 2010-02-26 EN doi:10.1364/OE.18.002760 Virtual Journal for Biomedical Optics, Vol. 18, Issue 3, pp. 2760-2766 © 2010 OSA http://www.opticsinfobase.org/abstract.cfm?URI=oe-18-3-2782 Sergio Ortiz, Damian Siedlecki, Ireneusz Grulkowski, Laura Remon, Daniel Pascual, Maciej Wojtkowski, Susana Marcos<br/>A method for three-dimensional 3-D optical distortion (refraction) correction on anterior segment Optical Coherence Tomography (OCT) images has been developed. The method consists of 3-D ray tracing through the different surfaces, following denoising, segmentation of the surfaces, Delaunay ... [Virtual J. Biomed. Opt. 18, 2782-2796 (2010)] Fri, 26 Feb 2010 00:00:00 EST Optical distortion correction in Optical Coherence Tomography for quantitative ocular anterior segment by three-dimensional imaging Sergio Ortiz Damian Siedlecki Ireneusz Grulkowski Laura Remon Daniel Pascual Maciej Wojtkowski Susana Marcos A method for three-dimensional 3-D optical distortion (refraction) correction on anterior segment Optical Coherence Tomography (OCT) images has been developed. The method consists of 3-D ray tracing through the different surfaces, following denoising, segmentation of the surfaces, Delaunay ... Optical Society of America 2010-02-26 EN doi:10.1364/OE.18.002782 Virtual Journal for Biomedical Optics, Vol. 18, Issue 3, pp. 2782-2796 © 2010 OSA http://www.opticsinfobase.org/abstract.cfm?URI=oe-18-3-2760 Chao Tao, Xiaojun Liu<br/>The goal of this work is to resolve the limited-view problem of photoacoustic tomography (PAT). We report a two-loop iteration method to inverse the photoacoustic sources from the measured photoacoustic signals. PAT reconstruction with this method does not depend on the detection path. Therefore, ... [Virtual J. Biomed. Opt. 18, 2760-2766 (2010)] Fri, 26 Feb 2010 00:00:00 EST Reconstruction of high quality photoacoustic tomography with a limited-view scanning Chao Tao Xiaojun Liu The goal of this work is to resolve the limited-view problem of photoacoustic tomography (PAT). We report a two-loop iteration method to inverse the photoacoustic sources from the measured photoacoustic signals. PAT reconstruction with this method does not depend on the detection path. Therefore, ... Optical Society of America 2010-02-26 EN doi:10.1364/OE.18.002760 Virtual Journal for Biomedical Optics, Vol. 18, Issue 3, pp. 2760-2766 © 2010 OSA http://www.opticsinfobase.org/abstract.cfm?URI=oe-18-3-2782 Sergio Ortiz, Damian Siedlecki, Ireneusz Grulkowski, Laura Remon, Daniel Pascual, Maciej Wojtkowski, Susana Marcos<br/>A method for three-dimensional 3-D optical distortion (refraction) correction on anterior segment Optical Coherence Tomography (OCT) images has been developed. The method consists of 3-D ray tracing through the different surfaces, following denoising, segmentation of the surfaces, Delaunay ... [Virtual J. Biomed. Opt. 18, 2782-2796 (2010)] Fri, 26 Feb 2010 00:00:00 EST Optical distortion correction in Optical Coherence Tomography for quantitative ocular anterior segment by three-dimensional imaging Sergio Ortiz Damian Siedlecki Ireneusz Grulkowski Laura Remon Daniel Pascual Maciej Wojtkowski Susana Marcos A method for three-dimensional 3-D optical distortion (refraction) correction on anterior segment Optical Coherence Tomography (OCT) images has been developed. The method consists of 3-D ray tracing through the different surfaces, following denoising, segmentation of the surfaces, Delaunay ... Optical Society of America 2010-02-26 EN doi:10.1364/OE.18.002782 Virtual Journal for Biomedical Optics, Vol. 18, Issue 3, pp. 2782-2796 © 2010 OSA http://www.opticsinfobase.org/abstract.cfm?URI=oe-18-3-2782 Sergio Ortiz, Damian Siedlecki, Ireneusz Grulkowski, Laura Remon, Daniel Pascual, Maciej Wojtkowski, Susana Marcos<br/>A method for three-dimensional 3-D optical distortion (refraction) correction on anterior segment Optical Coherence Tomography (OCT) images has been developed. The method consists of 3-D ray tracing through the different surfaces, following denoising, segmentation of the surfaces, Delaunay ... [Virtual J. Biomed. Opt. 18, 2782-2796 (2010)] Fri, 26 Feb 2010 00:00:00 EST Optical distortion correction in Optical Coherence Tomography for quantitative ocular anterior segment by three-dimensional imaging Sergio Ortiz Damian Siedlecki Ireneusz Grulkowski Laura Remon Daniel Pascual Maciej Wojtkowski Susana Marcos A method for three-dimensional 3-D optical distortion (refraction) correction on anterior segment Optical Coherence Tomography (OCT) images has been developed. The method consists of 3-D ray tracing through the different surfaces, following denoising, segmentation of the surfaces, Delaunay ... Optical Society of America 2010-02-26 EN doi:10.1364/OE.18.002782 Virtual Journal for Biomedical Optics, Vol. 18, Issue 3, pp. 2782-2796 © 2010 OSA http://www.opticsinfobase.org/abstract.cfm?URI=ol-35-3-360 Francisco E. Robles, Adam Wax<br/>We present measurements of morphological features in a thick turbid sample using light-scattering spectroscopy (LSS) and Fourier-domain low-coherence interferometry (fLCI) by processing with the dual-window (DW) method. A parallel frequency domain optical coherence tomography (OCT) system with a ... [Virtual J. Biomed. Opt. 35, 360-362 (2010)] Fri, 26 Feb 2010 00:00:00 EST Measuring morphological features using light-scattering spectroscopy and Fourier-domain low-coherence interferometry Francisco E. Robles Adam Wax We present measurements of morphological features in a thick turbid sample using light-scattering spectroscopy (LSS) and Fourier-domain low-coherence interferometry (fLCI) by processing with the dual-window (DW) method. A parallel frequency domain optical coherence tomography (OCT) system with a ... Optical Society of America 2010-02-26 EN doi:10.1364/OL.35.000360 Virtual Journal for Biomedical Optics, Vol. 35, Issue 3, pp. 360-362 © 2010 Optical Society of America http://www.opticsinfobase.org/abstract.cfm?URI=ol-35-3-360 Francisco E. Robles, Adam Wax<br/>We present measurements of morphological features in a thick turbid sample using light-scattering spectroscopy (LSS) and Fourier-domain low-coherence interferometry (fLCI) by processing with the dual-window (DW) method. A parallel frequency domain optical coherence tomography (OCT) system with a ... [Virtual J. Biomed. Opt. 35, 360-362 (2010)] Fri, 26 Feb 2010 00:00:00 EST Measuring morphological features using light-scattering spectroscopy and Fourier-domain low-coherence interferometry Francisco E. Robles Adam Wax We present measurements of morphological features in a thick turbid sample using light-scattering spectroscopy (LSS) and Fourier-domain low-coherence interferometry (fLCI) by processing with the dual-window (DW) method. A parallel frequency domain optical coherence tomography (OCT) system with a ... Optical Society of America 2010-02-26 EN doi:10.1364/OL.35.000360 Virtual Journal for Biomedical Optics, Vol. 35, Issue 3, pp. 360-362 © 2010 Optical Society of America http://www.opticsinfobase.org/abstract.cfm?URI=ao-49-4-663 E. C. Lins, J. Belasque, Jr., L. G. Marcassa<br/>Citrus canker is a serious disease caused by Xanthomonas citri subsp. citri bacteria, which infects citrus plants (Citrus spp.) leading to large economic losses in citrus production worldwide. In this work, laser induced fluorescence spectroscopy (LIF) was investigated as a diagnostic technique for ... [Virtual J. Biomed. Opt. 49, 663-667 (2010)] Fri, 26 Feb 2010 00:00:00 EST Optical fiber laser induced fluorescence spectroscopy as a citrus canker diagnostic E. C. Lins J. Belasque Jr. L. G. Marcassa Citrus canker is a serious disease caused by Xanthomonas citri subsp. citri bacteria, which infects citrus plants (Citrus spp.) leading to large economic losses in citrus production worldwide. In this work, laser induced fluorescence spectroscopy (LIF) was investigated as a diagnostic technique for ... Optical Society of America 2010-02-26 EN doi:10.1364/AO.49.000663 Virtual Journal for Biomedical Optics, Vol. 49, Issue 4, pp. 663-667 © 2010 Optical Society of America http://www.opticsinfobase.org/abstract.cfm?URI=josaa-27-2-303 Gerald Westheimer<br/>The classical radiance-luminance parallelism of units for the measurement of emission and reception of flux applies when visual processing is modeled on principles of physics or engineering. “Energy” has a defined meaning in these disciplines: it is the time integral of flux; the time ... [Virtual J. Biomed. Opt. 27, 303-307 (2010)] Fri, 26 Feb 2010 00:00:00 EST Dimensional analysis of visual signals Gerald Westheimer The classical radiance-luminance parallelism of units for the measurement of emission and reception of flux applies when visual processing is modeled on principles of physics or engineering. “Energy” has a defined meaning in these disciplines: it is the time integral of flux; the time ... Optical Society of America 2010-02-26 EN doi:10.1364/JOSAA.27.000303 Virtual Journal for Biomedical Optics, Vol. 27, Issue 2, pp. 303-307 © 2010 Optical Society of America http://www.opticsinfobase.org/abstract.cfm?URI=ao-49-4-592 Yongchang Wang, Daniel L. Lau, Laurence G. Hassebrook<br/>To solve problems associated with conventional 2D fingerprint acquisition processes including skin deformations and print smearing, we developed a noncontact 3D fingerprint scanner employing structured light illumination that, in order to be backwards compatible with existing 2D fingerprint ... [Virtual J. Biomed. Opt. 49, 592-600 (2010)] Fri, 26 Feb 2010 00:00:00 EST Fit-sphere unwrapping and performance analysis of 3D fingerprints Yongchang Wang Daniel L. Lau Laurence G. Hassebrook To solve problems associated with conventional 2D fingerprint acquisition processes including skin deformations and print smearing, we developed a noncontact 3D fingerprint scanner employing structured light illumination that, in order to be backwards compatible with existing 2D fingerprint ... Optical Society of America 2010-02-26 EN doi:10.1364/AO.49.000592 Virtual Journal for Biomedical Optics, Vol. 49, Issue 4, pp. 592-600 © 2010 Optical Society of America http://www.opticsinfobase.org/abstract.cfm?URI=oe-18-3-2668 C. Leahy, C. Leroux, C. Dainty, L. Diaz-Santana<br/>Microfluctuations of accommodation have been the subject of many studies. New technological developments now permit us to study the dynamics of the microfluctuations with unprecedented resolution and accuracy. We aim to characterise their temporal statistics for different levels of accommodative ... [Virtual J. Biomed. Opt. 18, 2668-2681 (2010)] Fri, 26 Feb 2010 00:00:00 EST Temporal dynamics and statistical characteristics of the microfluctuations of accommodation: Dependence on the mean accommodative effort C. Leahy C. Leroux C. Dainty L. Diaz-Santana Microfluctuations of accommodation have been the subject of many studies. New technological developments now permit us to study the dynamics of the microfluctuations with unprecedented resolution and accuracy. We aim to characterise their temporal statistics for different levels of accommodative ... Optical Society of America 2010-02-26 EN doi:10.1364/OE.18.002668 Virtual Journal for Biomedical Optics, Vol. 18, Issue 3, pp. 2668-2681 © 2010 Optical Society of America http://www.opticsinfobase.org/abstract.cfm?URI=josaa-27-2-286 Sivalogeswaran Ratnasingam, Steve Collins<br/>An algorithm is described to extract two features that represent the chromaticity of a surface and that are independent of both the intensity and correlated color temperature of the daylight illuminating a scene. For mathematical convenience this algorithm is derived using the assumptions that each ... [Virtual J. Biomed. Opt. 27, 286-294 (2010)] Fri, 26 Feb 2010 00:00:00 EST Study of the photodetector characteristics of a camera for color constancy in natural scenes Sivalogeswaran Ratnasingam Steve Collins An algorithm is described to extract two features that represent the chromaticity of a surface and that are independent of both the intensity and correlated color temperature of the daylight illuminating a scene. For mathematical convenience this algorithm is derived using the assumptions that each ... Optical Society of America 2010-02-26 EN doi:10.1364/JOSAA.27.000286 Virtual Journal for Biomedical Optics, Vol. 27, Issue 2, pp. 286-294 © 2010 Optical Society of America http://www.opticsinfobase.org/abstract.cfm?URI=ao-49-4-592 Yongchang Wang, Daniel L. Lau, Laurence G. Hassebrook<br/>To solve problems associated with conventional 2D fingerprint acquisition processes including skin deformations and print smearing, we developed a noncontact 3D fingerprint scanner employing structured light illumination that, in order to be backwards compatible with existing 2D fingerprint ... [Virtual J. Biomed. Opt. 49, 592-600 (2010)] Fri, 26 Feb 2010 00:00:00 EST Fit-sphere unwrapping and performance analysis of 3D fingerprints Yongchang Wang Daniel L. Lau Laurence G. Hassebrook To solve problems associated with conventional 2D fingerprint acquisition processes including skin deformations and print smearing, we developed a noncontact 3D fingerprint scanner employing structured light illumination that, in order to be backwards compatible with existing 2D fingerprint ... Optical Society of America 2010-02-26 EN doi:10.1364/AO.49.000592 Virtual Journal for Biomedical Optics, Vol. 49, Issue 4, pp. 592-600 © 2010 Optical Society of America http://www.opticsinfobase.org/abstract.cfm?URI=josaa-27-2-295 Michael J. Nasse, Jörg C. Woehl<br/>In this paper we present a rigorous and general theoretical model for the illumination point spread function of a confocal microscope that correctly reproduces the optical setup. The model uses vectorial theory and assumes that monochromatic light with a Gaussian intensity distribution (such as ... [Virtual J. Biomed. Opt. 27, 295-302 (2010)] Fri, 26 Feb 2010 00:00:00 EST Realistic modeling of the illumination point spread function in confocal scanning optical microscopy Michael J. Nasse Jörg C. Woehl In this paper we present a rigorous and general theoretical model for the illumination point spread function of a confocal microscope that correctly reproduces the optical setup. The model uses vectorial theory and assumes that monochromatic light with a Gaussian intensity distribution (such as ... Optical Society of America 2010-02-26 EN doi:10.1364/JOSAA.27.000295 Virtual Journal for Biomedical Optics, Vol. 27, Issue 2, pp. 295-302 © 2010 Optical Society of America http://www.opticsinfobase.org/abstract.cfm?URI=ol-35-3-327 Chaolong Song, Nam-Trung Nguyen, Anand Krishna Asundi, Say-Hwa Tan<br/>The integration of optical components into microfluidic systems has the potential to reduce the amount of bulky external devices and thus reduce the cost. However, one of the challenges of this concept is the accurate alignment of the optical path among multiple optical components inside a chip. We ... [Virtual J. Biomed. Opt. 35, 327-329 (2010)] Fri, 26 Feb 2010 00:00:00 EST Tunable micro-optofluidic prism based on liquid-core liquid-cladding configuration Chaolong Song Nam-Trung Nguyen AnKrishna Asundi Say-Hwa Tan The integration of optical components into microfluidic systems has the potential to reduce the amount of bulky external devices and thus reduce the cost. However, one of the challenges of this concept is the accurate alignment of the optical path among multiple optical components inside a chip. We ... Optical Society of America 2010-02-26 EN doi:10.1364/OL.35.000327 Virtual Journal for Biomedical Optics, Vol. 35, Issue 3, pp. 327-329 © 2010 Optical Society of America http://www.opticsinfobase.org/abstract.cfm?URI=oe-18-3-2477 Vivek J. Srinivasan, Sava Sakadžić, Iwona Gorczynska, Svetlana Ruvinskaya, Weicheng Wu, James G. Fujimoto, David A. Boas<br/>Absolute measurements of cerebral blood flow (CBF) are an important endpoint in studies of cerebral pathophysiology. Currently no accepted method exists for in vivo longitudinal monitoring of CBF with high resolution in rats and mice. Using three-dimensional Doppler Optical Coherence Tomography and ... [Virtual J. Biomed. Opt. 18, 2477-2494 (2010)] Fri, 26 Feb 2010 00:00:00 EST Quantitative cerebral blood flow with Optical Coherence Tomography Vivek J. Srinivasan Sava Sakadžić Iwona Gorczynska Svetlana Ruvinskaya Weicheng Wu James G. Fujimoto David A. Boas Absolute measurements of cerebral blood flow (CBF) are an important endpoint in studies of cerebral pathophysiology. Currently no accepted method exists for in vivo longitudinal monitoring of CBF with high resolution in rats and mice. Using three-dimensional Doppler Optical Coherence Tomography and ... Optical Society of America 2010-02-26 EN doi:10.1364/OE.18.002477 Virtual Journal for Biomedical Optics, Vol. 18, Issue 3, pp. 2477-2494 © 2010 OSA http://www.opticsinfobase.org/abstract.cfm?URI=ol-35-3-291 E. Castanié, M. Boffety, R. Carminati<br/>We study the spontaneous decay rate of a dipole emitter close to a metallic nanoparticle in the extreme near-field regime. The metal is modeled using a nonlocal dielectric function that accounts for the microscopic length scales of the free electron gas. We describe quantitatively the crossover ... [Virtual J. Biomed. Opt. 35, 291-293 (2010)] Fri, 26 Feb 2010 00:00:00 EST Fluorescence quenching by a metal nanoparticle in the extreme near-field regime E. Castanié M. Boffety R. Carminati We study the spontaneous decay rate of a dipole emitter close to a metallic nanoparticle in the extreme near-field regime. The metal is modeled using a nonlocal dielectric function that accounts for the microscopic length scales of the free electron gas. We describe quantitatively the crossover ... Optical Society of America 2010-02-26 EN doi:10.1364/OL.35.000291 Virtual Journal for Biomedical Optics, Vol. 35, Issue 3, pp. 291-293 © 2010 Optical Society of America http://www.opticsinfobase.org/abstract.cfm?URI=oe-18-3-2477 Vivek J. Srinivasan, Sava Sakadžić, Iwona Gorczynska, Svetlana Ruvinskaya, Weicheng Wu, James G. Fujimoto, David A. Boas<br/>Absolute measurements of cerebral blood flow (CBF) are an important endpoint in studies of cerebral pathophysiology. Currently no accepted method exists for in vivo longitudinal monitoring of CBF with high resolution in rats and mice. Using three-dimensional Doppler Optical Coherence Tomography and ... [Virtual J. Biomed. Opt. 18, 2477-2494 (2010)] Fri, 26 Feb 2010 00:00:00 EST Quantitative cerebral blood flow with Optical Coherence Tomography Vivek J. Srinivasan Sava Sakadžić Iwona Gorczynska Svetlana Ruvinskaya Weicheng Wu James G. Fujimoto David A. Boas Absolute measurements of cerebral blood flow (CBF) are an important endpoint in studies of cerebral pathophysiology. Currently no accepted method exists for in vivo longitudinal monitoring of CBF with high resolution in rats and mice. Using three-dimensional Doppler Optical Coherence Tomography and ... Optical Society of America 2010-02-26 EN doi:10.1364/OE.18.002477 Virtual Journal for Biomedical Optics, Vol. 18, Issue 3, pp. 2477-2494 © 2010 OSA http://www.opticsinfobase.org/abstract.cfm?URI=josaa-27-2-259 Hari M. Varma, B. Banerjee, D. Roy, A. K. Nandakumaran, R. M. Vasu<br/>We propose a self-regularized pseudo-time marching scheme to solve the ill-posed, nonlinear inverse problem associated with diffuse propagation of coherent light in a tissuelike object. In particular, in the context of diffuse correlation tomography (DCT), we consider the recovery of mechanical ... [Virtual J. Biomed. Opt. 27, 259-267 (2010)] Fri, 26 Feb 2010 00:00:00 EST Convergence analysis of the Newton algorithm and a pseudo-time marching scheme for diffuse correlation tomography Hari M. Varma B. Banerjee D. Roy A. K. Nandakumaran R. M. Vasu We propose a self-regularized pseudo-time marching scheme to solve the ill-posed, nonlinear inverse problem associated with diffuse propagation of coherent light in a tissuelike object. In particular, in the context of diffuse correlation tomography (DCT), we consider the recovery of mechanical ... Optical Society of America 2010-02-26 EN doi:10.1364/JOSAA.27.000259 Virtual Journal for Biomedical Optics, Vol. 27, Issue 2, pp. 259-267 © 2010 Optical Society of America http://www.opticsinfobase.org/abstract.cfm?URI=josaa-27-2-259 Hari M. Varma, B. Banerjee, D. Roy, A. K. Nandakumaran, R. M. Vasu<br/>We propose a self-regularized pseudo-time marching scheme to solve the ill-posed, nonlinear inverse problem associated with diffuse propagation of coherent light in a tissuelike object. In particular, in the context of diffuse correlation tomography (DCT), we consider the recovery of mechanical ... [Virtual J. Biomed. Opt. 27, 259-267 (2010)] Fri, 26 Feb 2010 00:00:00 EST Convergence analysis of the Newton algorithm and a pseudo-time marching scheme for diffuse correlation tomography Hari M. Varma B. Banerjee D. Roy A. K. Nandakumaran R. M. Vasu We propose a self-regularized pseudo-time marching scheme to solve the ill-posed, nonlinear inverse problem associated with diffuse propagation of coherent light in a tissuelike object. In particular, in the context of diffuse correlation tomography (DCT), we consider the recovery of mechanical ... Optical Society of America 2010-02-26 EN doi:10.1364/JOSAA.27.000259 Virtual Journal for Biomedical Optics, Vol. 27, Issue 2, pp. 259-267 © 2010 Optical Society of America http://www.opticsinfobase.org/abstract.cfm?URI=oe-18-3-2566 Tsan-Wen Lu, Pin-Tso Lin, Kuan-Un Sio, Po-Tsung Lee<br/>We propose a point-shifted nanocavity based on square lattice photonic crystal, which sustains a lowest-order whispering-gallery (WG) mode. In simulation, the optimized WG mode (quality (Q) factor ~14,000) in point-shifted nanocavity can be with smaller mode volume (~5.5(λ/2n)^3) but larger ... [Virtual J. Biomed. Opt. 18, 2566-2572 (2010)] Fri, 26 Feb 2010 00:00:00 EST Square lattice photonic crystal point-shifted nanocavity with lowest-order whispering-gallery mode Tsan-Wen Lu Pin-Tso Lin Kuan-Un Sio Po-Tsung Lee We propose a point-shifted nanocavity based on square lattice photonic crystal, which sustains a lowest-order whispering-gallery (WG) mode. In simulation, the optimized WG mode (quality (Q) factor ~14,000) in point-shifted nanocavity can be with smaller mode volume (~5.5(λ/2n)^3) but larger ... Optical Society of America 2010-02-26 EN doi:10.1364/OE.18.002566 Virtual Journal for Biomedical Optics, Vol. 18, Issue 3, pp. 2566-2572 © 2010 OSA http://www.opticsinfobase.org/abstract.cfm?URI=oe-18-3-2477 Vivek J. Srinivasan, Sava Sakadžić, Iwona Gorczynska, Svetlana Ruvinskaya, Weicheng Wu, James G. Fujimoto, David A. Boas<br/>Absolute measurements of cerebral blood flow (CBF) are an important endpoint in studies of cerebral pathophysiology. Currently no accepted method exists for in vivo longitudinal monitoring of CBF with high resolution in rats and mice. Using three-dimensional Doppler Optical Coherence Tomography and ... [Virtual J. Biomed. Opt. 18, 2477-2494 (2010)] Fri, 26 Feb 2010 00:00:00 EST Quantitative cerebral blood flow with Optical Coherence Tomography Vivek J. Srinivasan Sava Sakadžić Iwona Gorczynska Svetlana Ruvinskaya Weicheng Wu James G. Fujimoto David A. Boas Absolute measurements of cerebral blood flow (CBF) are an important endpoint in studies of cerebral pathophysiology. Currently no accepted method exists for in vivo longitudinal monitoring of CBF with high resolution in rats and mice. Using three-dimensional Doppler Optical Coherence Tomography and ... Optical Society of America 2010-02-26 EN doi:10.1364/OE.18.002477 Virtual Journal for Biomedical Optics, Vol. 18, Issue 3, pp. 2477-2494 © 2010 OSA http://www.opticsinfobase.org/abstract.cfm?URI=oe-18-3-2477 Vivek J. Srinivasan, Sava Sakadžić, Iwona Gorczynska, Svetlana Ruvinskaya, Weicheng Wu, James G. Fujimoto, David A. Boas<br/>Absolute measurements of cerebral blood flow (CBF) are an important endpoint in studies of cerebral pathophysiology. Currently no accepted method exists for in vivo longitudinal monitoring of CBF with high resolution in rats and mice. Using three-dimensional Doppler Optical Coherence Tomography and ... [Virtual J. Biomed. Opt. 18, 2477-2494 (2010)] Fri, 26 Feb 2010 00:00:00 EST Quantitative cerebral blood flow with Optical Coherence Tomography Vivek J. Srinivasan Sava Sakadžić Iwona Gorczynska Svetlana Ruvinskaya Weicheng Wu James G. Fujimoto David A. Boas Absolute measurements of cerebral blood flow (CBF) are an important endpoint in studies of cerebral pathophysiology. Currently no accepted method exists for in vivo longitudinal monitoring of CBF with high resolution in rats and mice. Using three-dimensional Doppler Optical Coherence Tomography and ... Optical Society of America 2010-02-26 EN doi:10.1364/OE.18.002477 Virtual Journal for Biomedical Optics, Vol. 18, Issue 3, pp. 2477-2494 © 2010 OSA http://www.opticsinfobase.org/abstract.cfm?URI=ol-35-3-309 Xingsheng Xu, Toshiki Yamada, Shiyoshi Yokoyama<br/>We investigate two-photon excited fluorescence from CdSe quantum dots with a center-emitting wavelength of 655 nm on SiN photonic crystals. We find that two-photon excited fluorescence is enhanced by more than 1 order of magnitude in the vertical direction when a photonic crystal is used compared ... [Virtual J. Biomed. Opt. 35, 309-311 (2010)] Fri, 26 Feb 2010 00:00:00 EST Modification of two-photon excited fluorescence from quantum dots on SiN photonic crystals Xingsheng Xu Toshiki Yamada Shiyoshi Yokoyama We investigate two-photon excited fluorescence from CdSe quantum dots with a center-emitting wavelength of 655 nm on SiN photonic crystals. We find that two-photon excited fluorescence is enhanced by more than 1 order of magnitude in the vertical direction when a photonic crystal is used compared ... Optical Society of America 2010-02-26 EN doi:10.1364/OL.35.000309 Virtual Journal for Biomedical Optics, Vol. 35, Issue 3, pp. 309-311 © 2010 Optical Society of America http://www.opticsinfobase.org/abstract.cfm?URI=oe-18-3-2368 Sarah C. Irvine, David M. Paganin, Aidan Jamison, Stephen Dubsky, Andreas Fouras<br/>We present a time-resolved tomographic reconstruction of the velocity field associated with pulsatile blood flow through a rotationally-symmetric stenotic vessel model. The in-vitro sample was imaged using propagation-based phase contrast with monochromated X-rays from a synchrotron undulator ... [Virtual J. Biomed. Opt. 18, 2368-2379 (2010)] Fri, 26 Feb 2010 00:00:00 EST Vector tomographic X-ray phase contrast velocimetry utilizing dynamic blood speckle Sarah C. Irvine David M. Paganin Aidan Jamison Stephen Dubsky Andreas Fouras We present a time-resolved tomographic reconstruction of the velocity field associated with pulsatile blood flow through a rotationally-symmetric stenotic vessel model. The in-vitro sample was imaged using propagation-based phase contrast with monochromated X-rays from a synchrotron undulator ... Optical Society of America 2010-02-26 EN doi:10.1364/OE.18.002368 Virtual Journal for Biomedical Optics, Vol. 18, Issue 3, pp. 2368-2379 © 2010 OSA http://www.opticsinfobase.org/abstract.cfm?URI=oe-18-3-2287 Artūras Žukauskas, Rimantas Vaicekauskas, Michael Shur<br/>Spectral power distribution of trichromatic clusters of light-emitting diodes (LEDs) was optimized for rendering the highest number of colors with a perceptually noticeable gain in chroma (color saturation) out of 1269 Munsell samples. The basic tradeoffs of the number of colors rendered with ... [Virtual J. Biomed. Opt. 18, 2287-2295 (2010)] Fri, 26 Feb 2010 00:00:00 EST Solid-state lamps with optimized color saturation ability Artūras Žukauskas Rimantas Vaicekauskas Michael Shur Spectral power distribution of trichromatic clusters of light-emitting diodes (LEDs) was optimized for rendering the highest number of colors with a perceptually noticeable gain in chroma (color saturation) out of 1269 Munsell samples. The basic tradeoffs of the number of colors rendered with ... Optical Society of America 2010-02-26 EN doi:10.1364/OE.18.002287 Virtual Journal for Biomedical Optics, Vol. 18, Issue 3, pp. 2287-2295 © 2010 OSA http://www.opticsinfobase.org/abstract.cfm?URI=josaa-27-2-251 Noriyuki Shimano, Mikiya Hironaga<br/>Recovery of spectral reflectances of objects being imaged through the use of sensor responses is important to reproduce color images under various illuminations. Although the Wiener estimation is usually used for the recovery, the recovery performance of the estimation depends on the ... [Virtual J. Biomed. Opt. 27, 251-258 (2010)] Fri, 26 Feb 2010 00:00:00 EST Recovery of spectral reflectances of imaged objects by the use of features of spectral reflectances Noriyuki Shimano Mikiya Hironaga Recovery of spectral reflectances of objects being imaged through the use of sensor responses is important to reproduce color images under various illuminations. Although the Wiener estimation is usually used for the recovery, the recovery performance of the estimation depends on the ... Optical Society of America 2010-02-26 EN doi:10.1364/JOSAA.27.000251 Virtual Journal for Biomedical Optics, Vol. 27, Issue 2, pp. 251-258 © 2010 Optical Society of America http://www.opticsinfobase.org/abstract.cfm?URI=oe-18-3-2380 Mihaela Balu, Gangjun Liu, Zhongping Chen, Bruce J. Tromberg, Eric O. Potma<br/>We demonstrate a fiber-based probe for maximum collection of the coherent anti-Stokes Raman scattering (CARS) signal in biological tissues. We discuss the design challenges including capturing the backscattered forward generated CARS signal in the sample and the effects of fiber nonlinearities on ... [Virtual J. Biomed. Opt. 18, 2380-2388 (2010)] Fri, 26 Feb 2010 00:00:00 EST Fiber delivered probe for efficient CARS imaging of tissues Mihaela Balu Gangjun Liu Zhongping Chen Bruce J. Tromberg Eric O. Potma We demonstrate a fiber-based probe for maximum collection of the coherent anti-Stokes Raman scattering (CARS) signal in biological tissues. We discuss the design challenges including capturing the backscattered forward generated CARS signal in the sample and the effects of fiber nonlinearities on ... Optical Society of America 2010-02-26 EN doi:10.1364/OE.18.002380 Virtual Journal for Biomedical Optics, Vol. 18, Issue 3, pp. 2380-2388 © 2010 Optical Society of America http://www.opticsinfobase.org/abstract.cfm?URI=oe-18-3-2368 Sarah C. Irvine, David M. Paganin, Aidan Jamison, Stephen Dubsky, Andreas Fouras<br/>We present a time-resolved tomographic reconstruction of the velocity field associated with pulsatile blood flow through a rotationally-symmetric stenotic vessel model. The in-vitro sample was imaged using propagation-based phase contrast with monochromated X-rays from a synchrotron undulator ... [Virtual J. Biomed. Opt. 18, 2368-2379 (2010)] Fri, 26 Feb 2010 00:00:00 EST Vector tomographic X-ray phase contrast velocimetry utilizing dynamic blood speckle Sarah C. Irvine David M. Paganin Aidan Jamison Stephen Dubsky Andreas Fouras We present a time-resolved tomographic reconstruction of the velocity field associated with pulsatile blood flow through a rotationally-symmetric stenotic vessel model. The in-vitro sample was imaged using propagation-based phase contrast with monochromated X-rays from a synchrotron undulator ... Optical Society of America 2010-02-26 EN doi:10.1364/OE.18.002368 Virtual Journal for Biomedical Optics, Vol. 18, Issue 3, pp. 2368-2379 © 2010 OSA http://www.opticsinfobase.org/abstract.cfm?URI=ol-35-3-282 Fei He, Ya Cheng, Zhizhan Xu, Yang Liao, Jian Xu, Haiyi Sun, Chen Wang, Zenghui Zhou, Koji Sugioka, Katsumi Midorikawa, Yonghao Xu, Xianfeng Chen<br/>We demonstrate direct fabrication of homogeneous microfluidic channels embedded in fused silica by femtosecond laser direct writing, followed by wet chemical etching and glass drawing. In addition, the glass drawing process significantly reduces the inner surface roughness of the fabricated ... [Virtual J. Biomed. Opt. 35, 282-284 (2010)] Fri, 26 Feb 2010 00:00:00 EST Direct fabrication of homogeneous microfluidic channels embedded in fused silica using a femtosecond laser Fei He Ya Cheng Zhizhan Xu Yang Liao Jian Xu Haiyi Sun Chen Wang Zenghui Zhou Koji Sugioka Katsumi Midorikawa Yonghao Xu Xianfeng Chen We demonstrate direct fabrication of homogeneous microfluidic channels embedded in fused silica by femtosecond laser direct writing, followed by wet chemical etching and glass drawing. In addition, the glass drawing process significantly reduces the inner surface roughness of the fabricated ... Optical Society of America 2010-02-26 EN doi:10.1364/OL.35.000282 Virtual Journal for Biomedical Optics, Vol. 35, Issue 3, pp. 282-284 © 2010 Optical Society of America http://www.opticsinfobase.org/abstract.cfm?URI=oe-18-3-2380 Mihaela Balu, Gangjun Liu, Zhongping Chen, Bruce J. Tromberg, Eric O. Potma<br/>We demonstrate a fiber-based probe for maximum collection of the coherent anti-Stokes Raman scattering (CARS) signal in biological tissues. We discuss the design challenges including capturing the backscattered forward generated CARS signal in the sample and the effects of fiber nonlinearities on ... [Virtual J. Biomed. Opt. 18, 2380-2388 (2010)] Fri, 26 Feb 2010 00:00:00 EST Fiber delivered probe for efficient CARS imaging of tissues Mihaela Balu Gangjun Liu Zhongping Chen Bruce J. Tromberg Eric O. Potma We demonstrate a fiber-based probe for maximum collection of the coherent anti-Stokes Raman scattering (CARS) signal in biological tissues. We discuss the design challenges including capturing the backscattered forward generated CARS signal in the sample and the effects of fiber nonlinearities on ... Optical Society of America 2010-02-26 EN doi:10.1364/OE.18.002380 Virtual Journal for Biomedical Optics, Vol. 18, Issue 3, pp. 2380-2388 © 2010 Optical Society of America http://www.opticsinfobase.org/abstract.cfm?URI=oe-18-3-2368 Sarah C. Irvine, David M. Paganin, Aidan Jamison, Stephen Dubsky, Andreas Fouras<br/>We present a time-resolved tomographic reconstruction of the velocity field associated with pulsatile blood flow through a rotationally-symmetric stenotic vessel model. The in-vitro sample was imaged using propagation-based phase contrast with monochromated X-rays from a synchrotron undulator ... [Virtual J. Biomed. Opt. 18, 2368-2379 (2010)] Fri, 26 Feb 2010 00:00:00 EST Vector tomographic X-ray phase contrast velocimetry utilizing dynamic blood speckle Sarah C. Irvine David M. Paganin Aidan Jamison Stephen Dubsky Andreas Fouras We present a time-resolved tomographic reconstruction of the velocity field associated with pulsatile blood flow through a rotationally-symmetric stenotic vessel model. The in-vitro sample was imaged using propagation-based phase contrast with monochromated X-rays from a synchrotron undulator ... Optical Society of America 2010-02-26 EN doi:10.1364/OE.18.002368 Virtual Journal for Biomedical Optics, Vol. 18, Issue 3, pp. 2368-2379 © 2010 OSA http://www.opticsinfobase.org/abstract.cfm?URI=oe-18-3-2380 Mihaela Balu, Gangjun Liu, Zhongping Chen, Bruce J. Tromberg, Eric O. Potma<br/>We demonstrate a fiber-based probe for maximum collection of the coherent anti-Stokes Raman scattering (CARS) signal in biological tissues. We discuss the design challenges including capturing the backscattered forward generated CARS signal in the sample and the effects of fiber nonlinearities on ... [Virtual J. Biomed. Opt. 18, 2380-2388 (2010)] Fri, 26 Feb 2010 00:00:00 EST Fiber delivered probe for efficient CARS imaging of tissues Mihaela Balu Gangjun Liu Zhongping Chen Bruce J. Tromberg Eric O. Potma We demonstrate a fiber-based probe for maximum collection of the coherent anti-Stokes Raman scattering (CARS) signal in biological tissues. We discuss the design challenges including capturing the backscattered forward generated CARS signal in the sample and the effects of fiber nonlinearities on ... Optical Society of America 2010-02-26 EN doi:10.1364/OE.18.002380 Virtual Journal for Biomedical Optics, Vol. 18, Issue 3, pp. 2380-2388 © 2010 Optical Society of America http://www.opticsinfobase.org/abstract.cfm?URI=ol-35-3-270 Adam de la Zerda, Yannis M. Paulus, Robert Teed, Sunil Bodapati, Yosh Dollberg, Butrus T. Khuri-Yakub, Mark S. Blumenkranz, Darius M. Moshfeghi, Sanjiv Sam Gambhir<br/>We developed a photoacoustic ocular imaging device and demonstrated its utility in imaging the deeper layers of the eye including the retina, choroid, and optic nerve. Using safe laser intensity, the photoacoustic system was able to visualize the blood distribution of an enucleated pig's eye and an ... [Virtual J. Biomed. Opt. 35, 270-272 (2010)] Fri, 26 Feb 2010 00:00:00 EST Photoacoustic ocular imaging Adam de la Zerda Yannis M. Paulus Robert Teed Sunil Bodapati Yosh Dollberg Butrus T. Khuri-Yakub Mark S. Blumenkranz Darius M. Moshfeghi Sanjiv Sam Gambhir We developed a photoacoustic ocular imaging device and demonstrated its utility in imaging the deeper layers of the eye including the retina, choroid, and optic nerve. Using safe laser intensity, the photoacoustic system was able to visualize the blood distribution of an enucleated pig's eye and an ... Optical Society of America 2010-02-26 EN doi:10.1364/OL.35.000270 Virtual Journal for Biomedical Optics, Vol. 35, Issue 3, pp. 270-272 © 2010 Optical Society of America http://www.opticsinfobase.org/abstract.cfm?URI=ol-35-3-270 Adam de la Zerda, Yannis M. Paulus, Robert Teed, Sunil Bodapati, Yosh Dollberg, Butrus T. Khuri-Yakub, Mark S. Blumenkranz, Darius M. Moshfeghi, Sanjiv Sam Gambhir<br/>We developed a photoacoustic ocular imaging device and demonstrated its utility in imaging the deeper layers of the eye including the retina, choroid, and optic nerve. Using safe laser intensity, the photoacoustic system was able to visualize the blood distribution of an enucleated pig's eye and an ... [Virtual J. Biomed. Opt. 35, 270-272 (2010)] Fri, 26 Feb 2010 00:00:00 EST Photoacoustic ocular imaging Adam de la Zerda Yannis M. Paulus Robert Teed Sunil Bodapati Yosh Dollberg Butrus T. Khuri-Yakub Mark S. Blumenkranz Darius M. Moshfeghi Sanjiv Sam Gambhir We developed a photoacoustic ocular imaging device and demonstrated its utility in imaging the deeper layers of the eye including the retina, choroid, and optic nerve. Using safe laser intensity, the photoacoustic system was able to visualize the blood distribution of an enucleated pig's eye and an ... Optical Society of America 2010-02-26 EN doi:10.1364/OL.35.000270 Virtual Journal for Biomedical Optics, Vol. 35, Issue 3, pp. 270-272 © 2010 Optical Society of America http://www.opticsinfobase.org/abstract.cfm?URI=ol-35-3-270 Adam de la Zerda, Yannis M. Paulus, Robert Teed, Sunil Bodapati, Yosh Dollberg, Butrus T. Khuri-Yakub, Mark S. Blumenkranz, Darius M. Moshfeghi, Sanjiv Sam Gambhir<br/>We developed a photoacoustic ocular imaging device and demonstrated its utility in imaging the deeper layers of the eye including the retina, choroid, and optic nerve. Using safe laser intensity, the photoacoustic system was able to visualize the blood distribution of an enucleated pig's eye and an ... [Virtual J. Biomed. Opt. 35, 270-272 (2010)] Fri, 26 Feb 2010 00:00:00 EST Photoacoustic ocular imaging Adam de la Zerda Yannis M. Paulus Robert Teed Sunil Bodapati Yosh Dollberg Butrus T. Khuri-Yakub Mark S. Blumenkranz Darius M. Moshfeghi Sanjiv Sam Gambhir We developed a photoacoustic ocular imaging device and demonstrated its utility in imaging the deeper layers of the eye including the retina, choroid, and optic nerve. Using safe laser intensity, the photoacoustic system was able to visualize the blood distribution of an enucleated pig's eye and an ... Optical Society of America 2010-02-26 EN doi:10.1364/OL.35.000270 Virtual Journal for Biomedical Optics, Vol. 35, Issue 3, pp. 270-272 © 2010 Optical Society of America http://www.opticsinfobase.org/abstract.cfm?URI=ol-35-3-270 Adam de la Zerda, Yannis M. Paulus, Robert Teed, Sunil Bodapati, Yosh Dollberg, Butrus T. Khuri-Yakub, Mark S. Blumenkranz, Darius M. Moshfeghi, Sanjiv Sam Gambhir<br/>We developed a photoacoustic ocular imaging device and demonstrated its utility in imaging the deeper layers of the eye including the retina, choroid, and optic nerve. Using safe laser intensity, the photoacoustic system was able to visualize the blood distribution of an enucleated pig's eye and an ... [Virtual J. Biomed. Opt. 35, 270-272 (2010)] Fri, 26 Feb 2010 00:00:00 EST Photoacoustic ocular imaging Adam de la Zerda Yannis M. Paulus Robert Teed Sunil Bodapati Yosh Dollberg Butrus T. Khuri-Yakub Mark S. Blumenkranz Darius M. Moshfeghi Sanjiv Sam Gambhir We developed a photoacoustic ocular imaging device and demonstrated its utility in imaging the deeper layers of the eye including the retina, choroid, and optic nerve. Using safe laser intensity, the photoacoustic system was able to visualize the blood distribution of an enucleated pig's eye and an ... Optical Society of America 2010-02-26 EN doi:10.1364/OL.35.000270 Virtual Journal for Biomedical Optics, Vol. 35, Issue 3, pp. 270-272 © 2010 Optical Society of America http://www.opticsinfobase.org/abstract.cfm?URI=josaa-27-2-218 G. Esser, W. Becken, W. Müller, P. Baumbach, J. Arasa, D. Uttenweiler<br/>From the literature the calculation of power and astigmatism of a local wavefront after refraction at a given surface is known from the vergence and Coddington equations. For higher-order aberrations (HOAs) equivalent analytical equations do not exist. Since HOAs play an increasingly important role ... [Virtual J. Biomed. Opt. 27, 218-237 (2010)] Fri, 26 Feb 2010 00:00:00 EST Derivation of the refraction equations for higher-order aberrations of local wavefronts at oblique incidence G. Esser W. Becken W. Müller P. Baumbach J. Arasa D. Uttenweiler From the literature the calculation of power and astigmatism of a local wavefront after refraction at a given surface is known from the vergence and Coddington equations. For higher-order aberrations (HOAs) equivalent analytical equations do not exist. Since HOAs play an increasingly important role ... Optical Society of America 2010-02-26 EN doi:10.1364/JOSAA.27.000218 Virtual Journal for Biomedical Optics, Vol. 27, Issue 2, pp. 218-237 © 2010 Optical Society of America http://www.opticsinfobase.org/abstract.cfm?URI=josaa-27-2-206 Jan J. Koenderink<br/>The prior statistics of object colors is of much interest because extensive statistical investigations of reflectance spectra reveal highly non-uniform structure in color space common to several very different databases. This common structure is due to the visual system rather than to the ... [Virtual J. Biomed. Opt. 27, 206-217 (2010)] Fri, 26 Feb 2010 00:00:00 EST The prior statistics of object colors Jan J. Koenderink The prior statistics of object colors is of much interest because extensive statistical investigations of reflectance spectra reveal highly non-uniform structure in color space common to several very different databases. This common structure is due to the visual system rather than to the ... Optical Society of America 2010-02-26 EN doi:10.1364/JOSAA.27.000206 Virtual Journal for Biomedical Optics, Vol. 27, Issue 2, pp. 206-217 © 2010 Optical Society of America http://www.opticsinfobase.org/abstract.cfm?URI=josaa-27-2-174 W. Cong, G. Wang<br/>A reconstruction method of bioluminescence sources is proposed based on a phase approximation model. Compared with the diffuse approximation, this phase approximation model more correctly predicts bioluminescence photon propagation in biological tissues, so that bioluminescence tomography can ... [Virtual J. Biomed. Opt. 27, 174-179 (2010)] Fri, 26 Feb 2010 00:00:00 EST Bioluminescence tomography based on the phase approximation model W. Cong G. Wang A reconstruction method of bioluminescence sources is proposed based on a phase approximation model. Compared with the diffuse approximation, this phase approximation model more correctly predicts bioluminescence photon propagation in biological tissues, so that bioluminescence tomography can ... Optical Society of America 2010-02-26 EN doi:10.1364/JOSAA.27.000174 Virtual Journal for Biomedical Optics, Vol. 27, Issue 2, pp. 174-179 © 2010 Optical Society of America http://www.opticsinfobase.org/abstract.cfm?URI=josaa-27-2-174 W. Cong, G. Wang<br/>A reconstruction method of bioluminescence sources is proposed based on a phase approximation model. Compared with the diffuse approximation, this phase approximation model more correctly predicts bioluminescence photon propagation in biological tissues, so that bioluminescence tomography can ... [Virtual J. Biomed. Opt. 27, 174-179 (2010)] Fri, 26 Feb 2010 00:00:00 EST Bioluminescence tomography based on the phase approximation model W. Cong G. Wang A reconstruction method of bioluminescence sources is proposed based on a phase approximation model. Compared with the diffuse approximation, this phase approximation model more correctly predicts bioluminescence photon propagation in biological tissues, so that bioluminescence tomography can ... Optical Society of America 2010-02-26 EN doi:10.1364/JOSAA.27.000174 Virtual Journal for Biomedical Optics, Vol. 27, Issue 2, pp. 174-179 © 2010 Optical Society of America http://www.opticsinfobase.org/abstract.cfm?URI=oe-18-3-2116 Giuseppe Pesce, Giulia Rusciano, Antonio Sasso<br/>Optical tweezers have become a powerful tool to explore the viscoelasticity of complex fluids at micrometric scale. In the experiments, the Brownian trajectories of optically confined microparticles are properly analysed to provide the viscous and elastic moduli G' and G'. Nevertheless, the elastic ... [Virtual J. Biomed. Opt. 18, 2116-2126 (2010)] Fri, 26 Feb 2010 00:00:00 EST Blinking Optical Tweezers for microrheology measurements of weak elasticity complex fluids Giuseppe Pesce Giulia Rusciano Antonio Sasso Optical tweezers have become a powerful tool to explore the viscoelasticity of complex fluids at micrometric scale. In the experiments, the Brownian trajectories of optically confined microparticles are properly analysed to provide the viscous and elastic moduli G' and G'. Nevertheless, the elastic ... Optical Society of America 2010-02-26 EN doi:10.1364/OE.18.002116 Virtual Journal for Biomedical Optics, Vol. 18, Issue 3, pp. 2116-2126 © 2010 Optical Society of America http://www.opticsinfobase.org/abstract.cfm?URI=oe-18-3-2168 C. Y. Soong, W. K. Li, C. H. Liu, P. Y. Tzeng<br/>In the present study, combining the conventional photothermal analysis and the concept of interaction of solvent molecules in interfacial layer used for thermophoresis in liquid, a theory for photophoresis of a hydrophobic particle suspended in liquids is developed. To characterize hydrophobicity ... [Virtual J. Biomed. Opt. 18, 2168-2182 (2010)] Fri, 26 Feb 2010 00:00:00 EST Theoretical analysis for photophoresis of a microscale hydrophobic particle in liquids C. Y. Soong W. K. Li C. H. Liu P. Y. Tzeng In the present study, combining the conventional photothermal analysis and the concept of interaction of solvent molecules in interfacial layer used for thermophoresis in liquid, a theory for photophoresis of a hydrophobic particle suspended in liquids is developed. To characterize hydrophobicity ... Optical Society of America 2010-02-26 EN doi:10.1364/OE.18.002168 Virtual Journal for Biomedical Optics, Vol. 18, Issue 3, pp. 2168-2182 © 2010 OSA http://www.opticsinfobase.org/abstract.cfm?URI=oe-18-3-2219 J. Baumgart, W. Bintig, A. Ngezahayo, H. Lubatschowski, A. Heisterkamp<br/>Fs-laser based opto-perforation is a gentle method for gene transfer into sensitive cells such as stem cells or primary cells. The high selectivity and the low damage to the cell lead to a high efficiency of transfection. However, there are side effects which induce stress to the cell due to the ... [Virtual J. Biomed. Opt. 18, 2219-2229 (2010)] Fri, 26 Feb 2010 00:00:00 EST Fs-laser-induced Ca^2+ concentration change during membrane perforation for cell transfection J. Baumgart W. Bintig A. Ngezahayo H. Lubatschowski A. Heisterkamp Fs-laser based opto-perforation is a gentle method for gene transfer into sensitive cells such as stem cells or primary cells. The high selectivity and the low damage to the cell lead to a high efficiency of transfection. However, there are side effects which induce stress to the cell due to the ... Optical Society of America 2010-02-26 EN doi:10.1364/OE.18.002219 Virtual Journal for Biomedical Optics, Vol. 18, Issue 3, pp. 2219-2229 © 2010 Optical Society of America http://www.opticsinfobase.org/abstract.cfm?URI=josaa-27-2-174 W. Cong, G. Wang<br/>A reconstruction method of bioluminescence sources is proposed based on a phase approximation model. Compared with the diffuse approximation, this phase approximation model more correctly predicts bioluminescence photon propagation in biological tissues, so that bioluminescence tomography can ... [Virtual J. Biomed. Opt. 27, 174-179 (2010)] Fri, 26 Feb 2010 00:00:00 EST Bioluminescence tomography based on the phase approximation model W. Cong G. Wang A reconstruction method of bioluminescence sources is proposed based on a phase approximation model. Compared with the diffuse approximation, this phase approximation model more correctly predicts bioluminescence photon propagation in biological tissues, so that bioluminescence tomography can ... Optical Society of America 2010-02-26 EN doi:10.1364/JOSAA.27.000174 Virtual Journal for Biomedical Optics, Vol. 27, Issue 2, pp. 174-179 © 2010 Optical Society of America http://www.opticsinfobase.org/abstract.cfm?URI=oe-18-3-2219 J. Baumgart, W. Bintig, A. Ngezahayo, H. Lubatschowski, A. Heisterkamp<br/>Fs-laser based opto-perforation is a gentle method for gene transfer into sensitive cells such as stem cells or primary cells. The high selectivity and the low damage to the cell lead to a high efficiency of transfection. However, there are side effects which induce stress to the cell due to the ... [Virtual J. Biomed. Opt. 18, 2219-2229 (2010)] Fri, 26 Feb 2010 00:00:00 EST Fs-laser-induced Ca^2+ concentration change during membrane perforation for cell transfection J. Baumgart W. Bintig A. Ngezahayo H. Lubatschowski A. Heisterkamp Fs-laser based opto-perforation is a gentle method for gene transfer into sensitive cells such as stem cells or primary cells. The high selectivity and the low damage to the cell lead to a high efficiency of transfection. However, there are side effects which induce stress to the cell due to the ... Optical Society of America 2010-02-26 EN doi:10.1364/OE.18.002219 Virtual Journal for Biomedical Optics, Vol. 18, Issue 3, pp. 2219-2229 © 2010 Optical Society of America http://www.opticsinfobase.org/abstract.cfm?URI=oe-18-3-1959 Luping Du, Xuejin Zhang, Ting Mei, Xiaocong Yuan<br/>A substrate with ease for fabrication is proposed for surface enhanced Raman spectroscopy (SERS). A two-dimensional dielectric grating covered by a thin silver film enables the excitation of both localized surface plasmons (LSPs) and surface plasmon polaritons (SPPs). The finite-difference ... [Virtual J. Biomed. Opt. 18, 1959-1965 (2010)] Fri, 26 Feb 2010 00:00:00 EST Localized surface plasmons, surface plasmon polaritons, and their coupling in 2D metallic array for SERS Luping Du Xuejin Zhang Ting Mei Xiaocong Yuan A substrate with ease for fabrication is proposed for surface enhanced Raman spectroscopy (SERS). A two-dimensional dielectric grating covered by a thin silver film enables the excitation of both localized surface plasmons (LSPs) and surface plasmon polaritons (SPPs). The finite-difference ... Optical Society of America 2010-02-26 EN doi:10.1364/OE.18.001959 Virtual Journal for Biomedical Optics, Vol. 18, Issue 3, pp. 1959-1965 © 2010 OSA http://www.opticsinfobase.org/abstract.cfm?URI=oe-18-3-1959 Luping Du, Xuejin Zhang, Ting Mei, Xiaocong Yuan<br/>A substrate with ease for fabrication is proposed for surface enhanced Raman spectroscopy (SERS). A two-dimensional dielectric grating covered by a thin silver film enables the excitation of both localized surface plasmons (LSPs) and surface plasmon polaritons (SPPs). The finite-difference ... [Virtual J. Biomed. Opt. 18, 1959-1965 (2010)] Fri, 26 Feb 2010 00:00:00 EST Localized surface plasmons, surface plasmon polaritons, and their coupling in 2D metallic array for SERS Luping Du Xuejin Zhang Ting Mei Xiaocong Yuan A substrate with ease for fabrication is proposed for surface enhanced Raman spectroscopy (SERS). A two-dimensional dielectric grating covered by a thin silver film enables the excitation of both localized surface plasmons (LSPs) and surface plasmon polaritons (SPPs). The finite-difference ... Optical Society of America 2010-02-26 EN doi:10.1364/OE.18.001959 Virtual Journal for Biomedical Optics, Vol. 18, Issue 3, pp. 1959-1965 © 2010 OSA http://www.opticsinfobase.org/abstract.cfm?URI=oe-18-3-1854 Hao Gao, Hongkai Zhao<br/>In this paper we study an l1-regularized multilevel approach for bioluminescence tomography based on radiative transfer equation with the emphasis on improving imaging resolution and reducing computational time. Simulations are performed to validate that our algorithms are potential for efficient ... [Virtual J. Biomed. Opt. 18, 1854-1871 (2010)] Fri, 26 Feb 2010 00:00:00 EST Multilevel bioluminescence tomography based on radiative transfer equation Part 1: l1 regularization Hao Gao Hongkai Zhao In this paper we study an l1-regularized multilevel approach for bioluminescence tomography based on radiative transfer equation with the emphasis on improving imaging resolution and reducing computational time. Simulations are performed to validate that our algorithms are potential for efficient ... Optical Society of America 2010-02-26 EN doi:10.1364/OE.18.001854 Virtual Journal for Biomedical Optics, Vol. 18, Issue 3, pp. 1854-1871 © 2010 OSA http://www.opticsinfobase.org/abstract.cfm?URI=oe-18-3-1909 Kyle H. Y. Cheng, Beau A. Standish, Victor X. D. Yang, K. K. Y. Cheung, Xijia Gu, Edmund Y. Lam, K. K. Y. Wong<br/>We report the first Fourier domain modelocked (FDML) laser constructed using optical parametric amplifier (OPA) in conjunction with an erbium-doped fiber amplifier (EDFA), centered at ~1555nm, to the best of our knowledge. We utilize a one-pump OPA and a C-band EDFA in serial configuration with a ... [Virtual J. Biomed. Opt. 18, 1909-1915 (2010)] Fri, 26 Feb 2010 00:00:00 EST Wavelength-swept spectral and pulse shaping utilizing hybrid Fourier domain modelocking by fiber optical parametric and erbium-doped fiber amplifiers Kyle H. Y. Cheng Beau A. Standish Victor X. D. Yang K. K. Y. Cheung Xijia Gu Edmund Y. Lam K. K. Y. Wong We report the first Fourier domain modelocked (FDML) laser constructed using optical parametric amplifier (OPA) in conjunction with an erbium-doped fiber amplifier (EDFA), centered at ~1555nm, to the best of our knowledge. We utilize a one-pump OPA and a C-band EDFA in serial configuration with a ... Optical Society of America 2010-02-26 EN doi:10.1364/OE.18.001909 Virtual Journal for Biomedical Optics, Vol. 18, Issue 3, pp. 1909-1915 © 2010 OSA http://www.opticsinfobase.org/abstract.cfm?URI=oe-18-3-1854 Hao Gao, Hongkai Zhao<br/>In this paper we study an l1-regularized multilevel approach for bioluminescence tomography based on radiative transfer equation with the emphasis on improving imaging resolution and reducing computational time. Simulations are performed to validate that our algorithms are potential for efficient ... [Virtual J. Biomed. Opt. 18, 1854-1871 (2010)] Fri, 26 Feb 2010 00:00:00 EST Multilevel bioluminescence tomography based on radiative transfer equation Part 1: l1 regularization Hao Gao Hongkai Zhao In this paper we study an l1-regularized multilevel approach for bioluminescence tomography based on radiative transfer equation with the emphasis on improving imaging resolution and reducing computational time. Simulations are performed to validate that our algorithms are potential for efficient ... Optical Society of America 2010-02-26 EN doi:10.1364/OE.18.001854 Virtual Journal for Biomedical Optics, Vol. 18, Issue 3, pp. 1854-1871 © 2010 OSA http://www.opticsinfobase.org/abstract.cfm?URI=oe-18-3-1854 Hao Gao, Hongkai Zhao<br/>In this paper we study an l1-regularized multilevel approach for bioluminescence tomography based on radiative transfer equation with the emphasis on improving imaging resolution and reducing computational time. Simulations are performed to validate that our algorithms are potential for efficient ... [Virtual J. Biomed. Opt. 18, 1854-1871 (2010)] Fri, 26 Feb 2010 00:00:00 EST Multilevel bioluminescence tomography based on radiative transfer equation Part 1: l1 regularization Hao Gao Hongkai Zhao In this paper we study an l1-regularized multilevel approach for bioluminescence tomography based on radiative transfer equation with the emphasis on improving imaging resolution and reducing computational time. Simulations are performed to validate that our algorithms are potential for efficient ... Optical Society of America 2010-02-26 EN doi:10.1364/OE.18.001854 Virtual Journal for Biomedical Optics, Vol. 18, Issue 3, pp. 1854-1871 © 2010 OSA http://www.opticsinfobase.org/abstract.cfm?URI=oe-18-3-1909 Kyle H. Y. Cheng, Beau A. Standish, Victor X. D. Yang, K. K. Y. Cheung, Xijia Gu, Edmund Y. Lam, K. K. Y. Wong<br/>We report the first Fourier domain modelocked (FDML) laser constructed using optical parametric amplifier (OPA) in conjunction with an erbium-doped fiber amplifier (EDFA), centered at ~1555nm, to the best of our knowledge. We utilize a one-pump OPA and a C-band EDFA in serial configuration with a ... [Virtual J. Biomed. Opt. 18, 1909-1915 (2010)] Fri, 26 Feb 2010 00:00:00 EST Wavelength-swept spectral and pulse shaping utilizing hybrid Fourier domain modelocking by fiber optical parametric and erbium-doped fiber amplifiers Kyle H. Y. Cheng Beau A. Standish Victor X. D. Yang K. K. Y. Cheung Xijia Gu Edmund Y. Lam K. K. Y. Wong We report the first Fourier domain modelocked (FDML) laser constructed using optical parametric amplifier (OPA) in conjunction with an erbium-doped fiber amplifier (EDFA), centered at ~1555nm, to the best of our knowledge. We utilize a one-pump OPA and a C-band EDFA in serial configuration with a ... Optical Society of America 2010-02-26 EN doi:10.1364/OE.18.001909 Virtual Journal for Biomedical Optics, Vol. 18, Issue 3, pp. 1909-1915 © 2010 OSA http://www.opticsinfobase.org/abstract.cfm?URI=josaa-27-2-159 Rolf G. Kuehni, Renzo Shamey, Mara Mathews, Brandi Keene<br/>Reported are results of an experiment involving perceptual assessment of very large color differences using samples representing approximate mean Hering opponent generic unique hues (guHs) based on subject selections, intermediate hues (iHs) using Munsell samples intermediate between guHs, and ... [Virtual J. Biomed. Opt. 27, 159-165 (2010)] Fri, 26 Feb 2010 00:00:00 EST Perceptual prominence of Hering's chromatic primaries Rolf G. Kuehni Renzo Shamey Mara Mathews Brandi Keene Reported are results of an experiment involving perceptual assessment of very large color differences using samples representing approximate mean Hering opponent generic unique hues (guHs) based on subject selections, intermediate hues (iHs) using Munsell samples intermediate between guHs, and ... Optical Society of America 2010-02-26 EN doi:10.1364/JOSAA.27.000159 Virtual Journal for Biomedical Optics, Vol. 27, Issue 2, pp. 159-165 © 2010 Optical Society of America http://www.opticsinfobase.org/abstract.cfm?URI=josaa-27-2-151 Wei Li, Jules S. Jaffe<br/>A set of algorithms is proposed to retrieve the size of spherically symmetric particles from the measured intensity of angular scatter data. Of special interest are low-contrast particles whose real part of the index of refraction is between 1.03 and 1.09 and whose size ka is constrained so that ... [Virtual J. Biomed. Opt. 27, 151-158 (2010)] Fri, 26 Feb 2010 00:00:00 EST Sizing homogeneous spherical particles from intensity-only angular scatter Wei Li Jules S. Jaffe A set of algorithms is proposed to retrieve the size of spherically symmetric particles from the measured intensity of angular scatter data. Of special interest are low-contrast particles whose real part of the index of refraction is between 1.03 and 1.09 and whose size ka is constrained so that ... Optical Society of America 2010-02-26 EN doi:10.1364/JOSAA.27.000151 Virtual Journal for Biomedical Optics, Vol. 27, Issue 2, pp. 151-158 © 2010 Optical Society of America http://www.opticsinfobase.org/abstract.cfm?URI=josaa-27-2-151 Wei Li, Jules S. Jaffe<br/>A set of algorithms is proposed to retrieve the size of spherically symmetric particles from the measured intensity of angular scatter data. Of special interest are low-contrast particles whose real part of the index of refraction is between 1.03 and 1.09 and whose size ka is constrained so that ... [Virtual J. Biomed. Opt. 27, 151-158 (2010)] Fri, 26 Feb 2010 00:00:00 EST Sizing homogeneous spherical particles from intensity-only angular scatter Wei Li Jules S. Jaffe A set of algorithms is proposed to retrieve the size of spherically symmetric particles from the measured intensity of angular scatter data. Of special interest are low-contrast particles whose real part of the index of refraction is between 1.03 and 1.09 and whose size ka is constrained so that ... Optical Society of America 2010-02-26 EN doi:10.1364/JOSAA.27.000151 Virtual Journal for Biomedical Optics, Vol. 27, Issue 2, pp. 151-158 © 2010 Optical Society of America http://www.opticsinfobase.org/abstract.cfm?URI=josaa-27-2-141 Hsin M. Shieh, Yu-Ching Hsu, Charles L. Byrne, Michael A. Fiddy<br/>The ambiguity involved in reconstructing an image from limited Fourier data is removed using a new technique that incorporates prior knowledge of the location of regions containing small-scale features of interest. The prior discrete Fourier transform (PDFT) method for image reconstruction ... [Virtual J. Biomed. Opt. 27, 141-150 (2010)] Fri, 26 Feb 2010 00:00:00 EST Resolution enhancement of imaging small-scale portions in a compactly supported function Hsin M. Shieh Yu-Ching Hsu Charles L. Byrne Michael A. Fiddy The ambiguity involved in reconstructing an image from limited Fourier data is removed using a new technique that incorporates prior knowledge of the location of regions containing small-scale features of interest. The prior discrete Fourier transform (PDFT) method for image reconstruction ... Optical Society of America 2010-02-26 EN doi:10.1364/JOSAA.27.000141 Virtual Journal for Biomedical Optics, Vol. 27, Issue 2, pp. 141-150 © 2010 Optical Society of America http://www.opticsinfobase.org/abstract.cfm?URI=as-64-1-127 Heikki Tuononen, Kaori Fukunaga, Marko Kuosmanen, Jarkko Ketolainen, Kai-Erik Peiponen<br/>The terahertz measurement technique has become popular in the field of pharmaceutical technology for tablet quality inspection. Spectral data obtained from the tablets is based on the utilization of Fresnel's formulas for an ideal slab. However, a tablet is a porous medium. Hence, in the THz gap ... [Virtual J. Biomed. Opt. 64, 127-131 (2010)] Fri, 26 Feb 2010 00:00:00 EST Wiener Bounds for Complex Permittivity in Terahertz Spectroscopy: Case Study of Two-Phase Pharmaceutical Tablets Heikki Tuononen Kaori Fukunaga Marko Kuosmanen Jarkko Ketolainen Kai-Erik Peiponen The terahertz measurement technique has become popular in the field of pharmaceutical technology for tablet quality inspection. Spectral data obtained from the tablets is based on the utilization of Fresnel's formulas for an ideal slab. However, a tablet is a porous medium. Hence, in the THz gap ... Optical Society of America 2010-02-26 EN http://www.opticsinfobase.org/abstract.cfm?uri=as-64-1-127 Virtual Journal for Biomedical Optics, Vol. 64, Issue 1, pp. 127-131 http://www.opticsinfobase.org/abstract.cfm?URI=as-64-1-127 Heikki Tuononen, Kaori Fukunaga, Marko Kuosmanen, Jarkko Ketolainen, Kai-Erik Peiponen<br/>The terahertz measurement technique has become popular in the field of pharmaceutical technology for tablet quality inspection. Spectral data obtained from the tablets is based on the utilization of Fresnel's formulas for an ideal slab. However, a tablet is a porous medium. Hence, in the THz gap ... [Virtual J. Biomed. Opt. 64, 127-131 (2010)] Fri, 26 Feb 2010 00:00:00 EST Wiener Bounds for Complex Permittivity in Terahertz Spectroscopy: Case Study of Two-Phase Pharmaceutical Tablets Heikki Tuononen Kaori Fukunaga Marko Kuosmanen Jarkko Ketolainen Kai-Erik Peiponen The terahertz measurement technique has become popular in the field of pharmaceutical technology for tablet quality inspection. Spectral data obtained from the tablets is based on the utilization of Fresnel's formulas for an ideal slab. However, a tablet is a porous medium. Hence, in the THz gap ... Optical Society of America 2010-02-26 EN http://www.opticsinfobase.org/abstract.cfm?uri=as-64-1-127 Virtual Journal for Biomedical Optics, Vol. 64, Issue 1, pp. 127-131 http://www.opticsinfobase.org/abstract.cfm?URI=as-64-1-30 Bernard Panneton, Serge Guillaume, Jean-Michel Roger, Guy Samson<br/>Precision weeding by spot spraying in real time requires sensors to discriminate between weeds and crop without contact. Among the optical based solutions, the ultraviolet (UV) induced fluorescence of the plants appears as a promising alternative. In a first paper, the feasibility of discriminating ... [Virtual J. Biomed. Opt. 64, 30-36 (2010)] Fri, 26 Feb 2010 00:00:00 EST Improved Discrimination Between Monocotyledonous and Dicotyledonous Plants for Weed Control Based on the Blue-Green Region of Ultraviolet-Induced Fluorescence Spectra Bernard Panneton Serge Guillaume Jean-Michel Roger Guy Samson Precision weeding by spot spraying in real time requires sensors to discriminate between weeds and crop without contact. Among the optical based solutions, the ultraviolet (UV) induced fluorescence of the plants appears as a promising alternative. In a first paper, the feasibility of discriminating ... Optical Society of America 2010-02-26 EN http://www.opticsinfobase.org/abstract.cfm?uri=as-64-1-30 Virtual Journal for Biomedical Optics, Vol. 64, Issue 1, pp. 30-36 http://www.opticsinfobase.org/abstract.cfm?URI=as-64-1-100 Samantha A. Hawkins, Bosoon Park, Gavin H. Poole, Timothy Gottwald, William R. Windham, Kurt C. Lawrence<br/>Citrus Huanglongbing (HLB, also known as citrus greening disease) was discovered in Florida in 2005 and is spreading rapidly amongst the citrus growing regions of the state. Detection via visual symptoms of the disease is not a long-term viable option. New techniques are being developed to test for ... [Virtual J. Biomed. Opt. 64, 100-103 (2010)] Fri, 26 Feb 2010 00:00:00 EST Detection of Citrus Huanglongbing by Fourier Transform Infrared–Attenuated Total Reflection Spectroscopy Samantha A. Hawkins Bosoon Park Gavin H. Poole Timothy Gottwald William R. Windham Kurt C. Lawrence Citrus Huanglongbing (HLB, also known as citrus greening disease) was discovered in Florida in 2005 and is spreading rapidly amongst the citrus growing regions of the state. Detection via visual symptoms of the disease is not a long-term viable option. New techniques are being developed to test for ... Optical Society of America 2010-02-26 EN http://www.opticsinfobase.org/abstract.cfm?uri=as-64-1-100 Virtual Journal for Biomedical Optics, Vol. 64, Issue 1, pp. 100-103 http://www.opticsinfobase.org/abstract.cfm?URI=as-64-1-61 Jason R. Maher, Andrew J. Berger<br/>A key design parameter in spatially offset Raman spectroscopy (SORS) is the choice of offset distance between the illumination and collection areas. To investigate this choice, we performed SORS measurements on a simple two-layer chemical phantom. We show that while the SORS ratio, or the ratio of ... [Virtual J. Biomed. Opt. 64, 61-65 (2010)] Fri, 26 Feb 2010 00:00:00 EST Determination of Ideal Offset for Spatially Offset Raman Spectroscopy Jason R. Maher Andrew J. Berger A key design parameter in spatially offset Raman spectroscopy (SORS) is the choice of offset distance between the illumination and collection areas. To investigate this choice, we performed SORS measurements on a simple two-layer chemical phantom. We show that while the SORS ratio, or the ratio of ... Optical Society of America 2010-02-26 EN http://www.opticsinfobase.org/abstract.cfm?uri=as-64-1-61 Virtual Journal for Biomedical Optics, Vol. 64, Issue 1, pp. 61-65 http://www.opticsinfobase.org/abstract.cfm?URI=as-64-1-52 Neil Everall, Pavel Matousek, Neil MacLeod, Kate L. Ronayne, Ian P. Clark<br/>Picosecond time-resolved transmission Raman data were acquired for 1 mm thick powder samples of trans-stilbene, and a Monte Carlo model was developed that can successfully model the laser and Raman pulse profiles. Photon migration broadened the incident (∼1 ps) probe pulse by two orders of ... [Virtual J. Biomed. Opt. 64, 52-60 (2010)] Fri, 26 Feb 2010 00:00:00 EST Temporal and Spatial Resolution in Transmission Raman Spectroscopy Neil Everall Pavel Matousek Neil MacLeod Kate L. Ronayne Ian P. Clark Picosecond time-resolved transmission Raman data were acquired for 1 mm thick powder samples of trans-stilbene, and a Monte Carlo model was developed that can successfully model the laser and Raman pulse profiles. Photon migration broadened the incident (∼1 ps) probe pulse by two orders of ... Optical Society of America 2010-02-26 EN http://www.opticsinfobase.org/abstract.cfm?uri=as-64-1-52 Virtual Journal for Biomedical Optics, Vol. 64, Issue 1, pp. 52-60 http://www.opticsinfobase.org/abstract.cfm?URI=as-64-1-23 Li Zhang, Alptekin Aksan<br/>This paper presents a study using in vitro Fourier transform infrared spectroscopy (FT-IR) analysis to determine the thermal damage induced to the human cornea by the conductive keratoplasty (CK) procedure. Human cornea tissues were treated with CK at different radiofrequency power (58–64%) ... [Virtual J. Biomed. Opt. 64, 23-29 (2010)] Fri, 26 Feb 2010 00:00:00 EST Fourier Transform Infrared Analysis of the Thermal Modification of Human Cornea Tissue During Conductive Keratoplasty Li Zhang Alptekin Aksan This paper presents a study using in vitro Fourier transform infrared spectroscopy (FT-IR) analysis to determine the thermal damage induced to the human cornea by the conductive keratoplasty (CK) procedure. Human cornea tissues were treated with CK at different radiofrequency power (58–64%) ... Optical Society of America 2010-02-26 EN http://www.opticsinfobase.org/abstract.cfm?uri=as-64-1-23 Virtual Journal for Biomedical Optics, Vol. 64, Issue 1, pp. 23-29 http://www.opticsinfobase.org/abstract.cfm?URI=as-64-1-15 Heather J. Gulley-Stahl, Sharon B. Bledsoe, Andrew P. Evan, André J. Sommer<br/>The benefits of an attenuated total reflection Fourier transform infrared (ATR-FTIR) imaging approach for kidney biopsy analysis are described. Biopsy sections collected from kidney-stone formers are analyzed at the initial stages of stone development to provide insights into stone growth and ... [Virtual J. Biomed. Opt. 64, 15-22 (2010)] Fri, 26 Feb 2010 00:00:00 EST The Advantages of an Attenuated Total Internal Reflection Infrared Microspectroscopic Imaging Approach for Kidney Biopsy Analysis Heather J. Gulley-Stahl Sharon B. Bledsoe Andrew P. Evan André J. Sommer The benefits of an attenuated total reflection Fourier transform infrared (ATR-FTIR) imaging approach for kidney biopsy analysis are described. Biopsy sections collected from kidney-stone formers are analyzed at the initial stages of stone development to provide insights into stone growth and ... Optical Society of America 2010-02-26 EN http://www.opticsinfobase.org/abstract.cfm?uri=as-64-1-15 Virtual Journal for Biomedical Optics, Vol. 64, Issue 1, pp. 15-22 http://www.opticsinfobase.org/abstract.cfm?URI=as-64-1-23 Li Zhang, Alptekin Aksan<br/>This paper presents a study using in vitro Fourier transform infrared spectroscopy (FT-IR) analysis to determine the thermal damage induced to the human cornea by the conductive keratoplasty (CK) procedure. Human cornea tissues were treated with CK at different radiofrequency power (58–64%) ... [Virtual J. Biomed. Opt. 64, 23-29 (2010)] Fri, 26 Feb 2010 00:00:00 EST Fourier Transform Infrared Analysis of the Thermal Modification of Human Cornea Tissue During Conductive Keratoplasty Li Zhang Alptekin Aksan This paper presents a study using in vitro Fourier transform infrared spectroscopy (FT-IR) analysis to determine the thermal damage induced to the human cornea by the conductive keratoplasty (CK) procedure. Human cornea tissues were treated with CK at different radiofrequency power (58–64%) ... Optical Society of America 2010-02-26 EN http://www.opticsinfobase.org/abstract.cfm?uri=as-64-1-23 Virtual Journal for Biomedical Optics, Vol. 64, Issue 1, pp. 23-29 http://www.opticsinfobase.org/abstract.cfm?URI=as-64-1-52 Neil Everall, Pavel Matousek, Neil MacLeod, Kate L. Ronayne, Ian P. Clark<br/>Picosecond time-resolved transmission Raman data were acquired for 1 mm thick powder samples of trans-stilbene, and a Monte Carlo model was developed that can successfully model the laser and Raman pulse profiles. Photon migration broadened the incident (∼1 ps) probe pulse by two orders of ... [Virtual J. Biomed. Opt. 64, 52-60 (2010)] Fri, 26 Feb 2010 00:00:00 EST Temporal and Spatial Resolution in Transmission Raman Spectroscopy Neil Everall Pavel Matousek Neil MacLeod Kate L. Ronayne Ian P. Clark Picosecond time-resolved transmission Raman data were acquired for 1 mm thick powder samples of trans-stilbene, and a Monte Carlo model was developed that can successfully model the laser and Raman pulse profiles. Photon migration broadened the incident (∼1 ps) probe pulse by two orders of ... Optical Society of America 2010-02-26 EN http://www.opticsinfobase.org/abstract.cfm?uri=as-64-1-52 Virtual Journal for Biomedical Optics, Vol. 64, Issue 1, pp. 52-60 http://www.opticsinfobase.org/abstract.cfm?URI=as-64-1-61 Jason R. Maher, Andrew J. Berger<br/>A key design parameter in spatially offset Raman spectroscopy (SORS) is the choice of offset distance between the illumination and collection areas. To investigate this choice, we performed SORS measurements on a simple two-layer chemical phantom. We show that while the SORS ratio, or the ratio of ... [Virtual J. Biomed. Opt. 64, 61-65 (2010)] Fri, 26 Feb 2010 00:00:00 EST Determination of Ideal Offset for Spatially Offset Raman Spectroscopy Jason R. Maher Andrew J. Berger A key design parameter in spatially offset Raman spectroscopy (SORS) is the choice of offset distance between the illumination and collection areas. To investigate this choice, we performed SORS measurements on a simple two-layer chemical phantom. We show that while the SORS ratio, or the ratio of ... Optical Society of America 2010-02-26 EN http://www.opticsinfobase.org/abstract.cfm?uri=as-64-1-61 Virtual Journal for Biomedical Optics, Vol. 64, Issue 1, pp. 61-65 http://www.opticsinfobase.org/abstract.cfm?URI=as-64-1-100 Samantha A. Hawkins, Bosoon Park, Gavin H. Poole, Timothy Gottwald, William R. Windham, Kurt C. Lawrence<br/>Citrus Huanglongbing (HLB, also known as citrus greening disease) was discovered in Florida in 2005 and is spreading rapidly amongst the citrus growing regions of the state. Detection via visual symptoms of the disease is not a long-term viable option. New techniques are being developed to test for ... [Virtual J. Biomed. Opt. 64, 100-103 (2010)] Fri, 26 Feb 2010 00:00:00 EST Detection of Citrus Huanglongbing by Fourier Transform Infrared–Attenuated Total Reflection Spectroscopy Samantha A. Hawkins Bosoon Park Gavin H. Poole Timothy Gottwald William R. Windham Kurt C. Lawrence Citrus Huanglongbing (HLB, also known as citrus greening disease) was discovered in Florida in 2005 and is spreading rapidly amongst the citrus growing regions of the state. Detection via visual symptoms of the disease is not a long-term viable option. New techniques are being developed to test for ... Optical Society of America 2010-02-26 EN http://www.opticsinfobase.org/abstract.cfm?uri=as-64-1-100 Virtual Journal for Biomedical Optics, Vol. 64, Issue 1, pp. 100-103 http://www.opticsinfobase.org/abstract.cfm?URI=as-64-1-37 Emily C. Heider, Moussa Barhoum, Eric M. Peterson, Jonathan Schaefer, Joel M. Harris<br/>Detection of single, fluorescently labeled biomolecules is providing a powerful approach to measuring molecular transport, biomolecular interactions, and localization in biological systems. Because the biological molecules of interest rarely exhibit sufficient intrinsic fluorescence to allow ... [Virtual J. Biomed. Opt. 64, 37-45 (2010)] Fri, 26 Feb 2010 00:00:00 EST Identification of Single Fluorescent Labels Using Spectroscopic Microscopy Emily C. Heider Moussa Barhoum Eric M. Peterson Jonathan Schaefer Joel M. Harris Detection of single, fluorescently labeled biomolecules is providing a powerful approach to measuring molecular transport, biomolecular interactions, and localization in biological systems. Because the biological molecules of interest rarely exhibit sufficient intrinsic fluorescence to allow ... Optical Society of America 2010-02-26 EN http://www.opticsinfobase.org/abstract.cfm?uri=as-64-1-37 Virtual Journal for Biomedical Optics, Vol. 64, Issue 1, pp. 37-45 http://www.opticsinfobase.org/abstract.cfm?URI=as-64-1-37 Emily C. Heider, Moussa Barhoum, Eric M. Peterson, Jonathan Schaefer, Joel M. Harris<br/>Detection of single, fluorescently labeled biomolecules is providing a powerful approach to measuring molecular transport, biomolecular interactions, and localization in biological systems. Because the biological molecules of interest rarely exhibit sufficient intrinsic fluorescence to allow ... [Virtual J. Biomed. Opt. 64, 37-45 (2010)] Fri, 26 Feb 2010 00:00:00 EST Identification of Single Fluorescent Labels Using Spectroscopic Microscopy Emily C. Heider Moussa Barhoum Eric M. Peterson Jonathan Schaefer Joel M. Harris Detection of single, fluorescently labeled biomolecules is providing a powerful approach to measuring molecular transport, biomolecular interactions, and localization in biological systems. Because the biological molecules of interest rarely exhibit sufficient intrinsic fluorescence to allow ... Optical Society of America 2010-02-26 EN http://www.opticsinfobase.org/abstract.cfm?uri=as-64-1-37 Virtual Journal for Biomedical Optics, Vol. 64, Issue 1, pp. 37-45 http://www.opticsinfobase.org/abstract.cfm?URI=as-64-1-30 Bernard Panneton, Serge Guillaume, Jean-Michel Roger, Guy Samson<br/>Precision weeding by spot spraying in real time requires sensors to discriminate between weeds and crop without contact. Among the optical based solutions, the ultraviolet (UV) induced fluorescence of the plants appears as a promising alternative. In a first paper, the feasibility of discriminating ... [Virtual J. Biomed. Opt. 64, 30-36 (2010)] Fri, 26 Feb 2010 00:00:00 EST Improved Discrimination Between Monocotyledonous and Dicotyledonous Plants for Weed Control Based on the Blue-Green Region of Ultraviolet-Induced Fluorescence Spectra Bernard Panneton Serge Guillaume Jean-Michel Roger Guy Samson Precision weeding by spot spraying in real time requires sensors to discriminate between weeds and crop without contact. Among the optical based solutions, the ultraviolet (UV) induced fluorescence of the plants appears as a promising alternative. In a first paper, the feasibility of discriminating ... Optical Society of America 2010-02-26 EN http://www.opticsinfobase.org/abstract.cfm?uri=as-64-1-30 Virtual Journal for Biomedical Optics, Vol. 64, Issue 1, pp. 30-36