http://ao.osa.org Applied Optics Fri, 27 Jan 2012 00:00:00 EST http://metadata.osa.org/rss/infobase/images/ao.gif http://ao.osa.org Optical Society of America © 2012 Optical Society of America 2012-01-27 http://www.opticsinfobase.org/abstract.cfm?URI=ao-51-4-486 Psang Dain Lin<br/>The first-order derivative matrix of a function with respect to a variable vector is referred to as the Jacobian matrix in mathematics. Current commercial software packages for the analysis and design of optical systems use a finite difference (FD) approximation methodology to estimate the Jacobian ... [Appl. Opt. 51, 486-493 (2012)] Fri, 27 Jan 2012 00:00:00 EST Determination of first-order derivative matrix of wavefront aberration with respect to system variables Psang Dain Lin The first-order derivative matrix of a function with respect to a variable vector is referred to as the Jacobian matrix in mathematics. Current commercial software packages for the analysis and design of optical systems use a finite difference (FD) approximation methodology to estimate the Jacobian ... Optical Society of America 2012-02-01 EN doi:10.1364/AO.51.000486 Applied Optics, Vol. 51, Issue 4, pp. 486-493 © 2012 Optical Society of America http://www.opticsinfobase.org/abstract.cfm?URI=ao-51-4-494 Ujjal Dutta, Lakshminarayan Hazra<br/>In this report, we present an analysis for the primary chromatic aberrations of a diffractive lens on a spherically curved substrate having nonunity refractive index. This analysis facilitates achieving an optimal thin lens layout during structural design of the diffractive lens with prespecified ... [Appl. Opt. 51, 494-497 (2012)] Fri, 27 Jan 2012 00:00:00 EST Primary chromatic aberrations of a diffractive lens on finite substrate Ujjal Dutta Lakshminarayan Hazra In this report, we present an analysis for the primary chromatic aberrations of a diffractive lens on a spherically curved substrate having nonunity refractive index. This analysis facilitates achieving an optimal thin lens layout during structural design of the diffractive lens with prespecified ... Optical Society of America 2012-02-01 EN doi:10.1364/AO.51.000494 Applied Optics, Vol. 51, Issue 4, pp. 494-497 © 2012 Optical Society of America http://www.opticsinfobase.org/abstract.cfm?URI=ao-51-4-A17 Vikrant R. Bhakta, Manjunath Somayaji, Marc P. Christensen<br/>The phase of the optical transfer function is advocated as an important tool in the characterization of modern incoherent imaging systems. It is shown that knowledge of the phase transfer function (PTF) can benefit a diverse array of applications involving both traditional and computational imaging ... [Appl. Opt. 51, A17-A26 (2012)] Fri, 27 Jan 2012 00:00:00 EST Applications of the phase transfer function of digital incoherent imaging systems Vikrant R. Bhakta Manjunath Somayaji Marc P. Christensen The phase of the optical transfer function is advocated as an important tool in the characterization of modern incoherent imaging systems. It is shown that knowledge of the phase transfer function (PTF) can benefit a diverse array of applications involving both traditional and computational imaging ... Optical Society of America 2012-02-01 EN doi:10.1364/AO.51.000A17 Applied Optics, Vol. 51, Issue 4, pp. A17-A26 © 2012 Optical Society of America http://www.opticsinfobase.org/abstract.cfm?URI=ao-51-4-498 Mathew Polek, Sivanandan S. Harilal, A. Hassanein<br/>We performed two-dimensional (2D) mapping of the electron density in a laser-produced plasma with high spatial and temporal resolution. The plasma was produced by irradiating an aluminum target with 1064 nm, 6 ns pulses from a Nd:YAG laser under vacuum conditions. Stark broadening of the lines was ... [Appl. Opt. 51, 498-503 (2012)] Fri, 27 Jan 2012 00:00:00 EST Two-dimensional mapping of the electron density in laser-produced plasmas Mathew Polek Sivanandan S. Harilal A. Hassanein We performed two-dimensional (2D) mapping of the electron density in a laser-produced plasma with high spatial and temporal resolution. The plasma was produced by irradiating an aluminum target with 1064 nm, 6 ns pulses from a Nd:YAG laser under vacuum conditions. Stark broadening of the lines was ... Optical Society of America 2012-02-01 EN doi:10.1364/AO.51.000498 Applied Optics, Vol. 51, Issue 4, pp. 498-503 © 2012 Optical Society of America http://www.opticsinfobase.org/abstract.cfm?URI=ao-51-4-504 Yanbing Zhang, Ting Mei, Dao Hua Zhang<br/>The temporal coupled-mode theory (TCMT) for a ring–bus–ring Mach–Zehnder interferometer device is developed by taking energy conservation into account. The intercavity interaction in the device is facilitated via a tricoupler, which makes the decay of modes quantitatively ... [Appl. Opt. 51, 504-508 (2012)] Fri, 27 Jan 2012 00:00:00 EST Temporal coupled-mode theory of ring–bus–ring Mach–Zehnder interferometer Yanbing Zhang Ting Mei Dao Hua Zhang The temporal coupled-mode theory (TCMT) for a ring–bus–ring Mach–Zehnder interferometer device is developed by taking energy conservation into account. The intercavity interaction in the device is facilitated via a tricoupler, which makes the decay of modes quantitatively ... Optical Society of America 2012-02-01 EN doi:10.1364/AO.51.000504 Applied Optics, Vol. 51, Issue 4, pp. 504-508 © 2012 Optical Society of America http://www.opticsinfobase.org/abstract.cfm?URI=ao-51-4-509 Jian Fen Wu, Yong Yan Chen, Tai Sheng Wang<br/>In order to deal with the conflicts between broad spectral region and high resolution in compact spectrometers based on a flat field concave holographic grating and line array CCD, we present a simple and practical method to design a flat field concave holographic grating that is capable of imaging ... [Appl. Opt. 51, 509-514 (2012)] Fri, 27 Jan 2012 00:00:00 EST Flat field concave holographic grating with broad spectral region and moderately high resolution Jian Fen Wu Yong Yan Chen Tai Sheng Wang In order to deal with the conflicts between broad spectral region and high resolution in compact spectrometers based on a flat field concave holographic grating and line array CCD, we present a simple and practical method to design a flat field concave holographic grating that is capable of imaging ... Optical Society of America 2012-02-01 EN doi:10.1364/AO.51.000509 Applied Optics, Vol. 51, Issue 4, pp. 509-514 © 2012 Optical Society of America http://www.opticsinfobase.org/abstract.cfm?URI=ao-51-4-A27 Yongqiang Zhao, Qingyong Zhang, Jinxiang Yang<br/>Multiband polarization epithelial tissue imaging is an effective tool to measure tissue’s birefringence and structure for quantitative pathology analysis. To discriminate the pathology accurately, high-resolution multiband polarization images are essential. But it is difficult to acquire ... [Appl. Opt. 51, A27-A35 (2012)] Fri, 27 Jan 2012 00:00:00 EST High-resolution multiband polarization epithelial tissue imaging method by sparse representation and fusion Yongqiang Zhao Qingyong Zhang Jinxiang Yang Multiband polarization epithelial tissue imaging is an effective tool to measure tissue’s birefringence and structure for quantitative pathology analysis. To discriminate the pathology accurately, high-resolution multiband polarization images are essential. But it is difficult to acquire ... Optical Society of America 2012-02-01 EN doi:10.1364/AO.51.000A27 Applied Optics, Vol. 51, Issue 4, pp. A27-A35 © 2012 Optical Society of America http://www.opticsinfobase.org/abstract.cfm?URI=ao-51-4-A36 Predrag Milojkovic, Joseph N. Mait<br/>We examine the space-bandwidth product of wide field-of-view imaging systems as the systems scale in size. Our analysis is based on one conducted to examine the behavior of a plano-convex lens imaging onto a flat focal geometry. We extend this to consider systems with monocentric lenses and curved ... [Appl. Opt. 51, A36-A47 (2012)] Fri, 27 Jan 2012 00:00:00 EST Space-bandwidth scaling for wide field-of-view imaging Predrag Milojkovic Joseph N. Mait We examine the space-bandwidth product of wide field-of-view imaging systems as the systems scale in size. Our analysis is based on one conducted to examine the behavior of a plano-convex lens imaging onto a flat focal geometry. We extend this to consider systems with monocentric lenses and curved ... Optical Society of America 2012-02-01 EN doi:10.1364/AO.51.000A36 Applied Optics, Vol. 51, Issue 4, pp. A36-A47 http://www.opticsinfobase.org/abstract.cfm?URI=ao-51-4-A48 Manjunath Somayaji, Marc P. Christensen, Esmaeil Faramarzi, Dinesh Rajan, Juha-Pekka Laine, Peter Sebelius, Arthur Zachai, Murali Chaparala, Gregory Blasche, Keith Baldwin, Babatunde Ogunfemi, Domhnull Granquist-Fraser<br/>The design, development, and field-test results of a visible-band, folded, multiresolution, adaptive computational imaging system based on the Processing Arrays of Nyquist-limited Observations to Produce a Thin Electro-optic Sensor (PANOPTES) concept is presented. The architectural layout that ... [Appl. Opt. 51, A48-A58 (2012)] Fri, 27 Jan 2012 00:00:00 EST Prototype development and field-test results of an adaptive multiresolution PANOPTES imaging architecture Manjunath Somayaji Marc P. Christensen Esmaeil Faramarzi Dinesh Rajan Juha-Pekka Laine Peter Sebelius Arthur Zachai Murali Chaparala Gregory Blasche Keith Baldwin Babatunde Ogunfemi Domhnull Granquist-Fraser The design, development, and field-test results of a visible-band, folded, multiresolution, adaptive computational imaging system based on the Processing Arrays of Nyquist-limited Observations to Produce a Thin Electro-optic Sensor (PANOPTES) concept is presented. The architectural layout that ... Optical Society of America 2012-02-01 EN doi:10.1364/AO.51.000A48 Applied Optics, Vol. 51, Issue 4, pp. A48-A58 © 2012 Optical Society of America http://www.opticsinfobase.org/abstract.cfm?URI=ao-51-7-B1 Christian G. Parigger, Alexander Woods, James O. Hornkohl<br/>We present analysis of superposition spectra following laser-induced breakdown (LIB) of methane. Both hydrogen-beta and hydrogen-gamma lines contain discernible contributions from diatomic carbon emissions for time delays of 1 to 2 μs from pulsed, 8 ns, infrared Nd:YAG laser radiation LIB. ... [Appl. Opt. 51, B1-B6 (2012)] Thu, 26 Jan 2012 00:00:00 EST Analysis of time-resolved superposed atomic hydrogen Balmer lines and molecular diatomic carbon spectra Christian G. Parigger Alexander Woods James O. Hornkohl We present analysis of superposition spectra following laser-induced breakdown (LIB) of methane. Both hydrogen-beta and hydrogen-gamma lines contain discernible contributions from diatomic carbon emissions for time delays of 1 to 2 μs from pulsed, 8 ns, infrared Nd:YAG laser radiation LIB. ... Optical Society of America 2012-03-01 EN doi:10.1364/AO.51.0000B1 Applied Optics, Vol. 51, Issue 7, pp. B1-B6 © 2012 Optical Society of America http://www.opticsinfobase.org/abstract.cfm?URI=ao-51-7-B13 Jennifer L. Gottfried<br/>The feasibility of exploiting plasma chemistry to study the chemical reactions between metallic nanoparticles and molecular explosives such as cyclotrimethylenetrinitramine (RDX) has been demonstrated. This method, based on laser-induced breakdown spectroscopy, involves the production of ... [Appl. Opt. 51, B13-B21 (2012)] Thu, 26 Jan 2012 00:00:00 EST Laser-induced plasma chemistry of the explosive RDX with various metallic nanoparticles Jennifer L. Gottfried The feasibility of exploiting plasma chemistry to study the chemical reactions between metallic nanoparticles and molecular explosives such as cyclotrimethylenetrinitramine (RDX) has been demonstrated. This method, based on laser-induced breakdown spectroscopy, involves the production of ... Optical Society of America 2012-03-01 EN doi:10.1364/AO.51.000B13 Applied Optics, Vol. 51, Issue 7, pp. B13-B21 http://www.opticsinfobase.org/abstract.cfm?URI=ao-51-7-B7 Daniel Gagnon, Simon Lessard, Marc Verhaegen, Patrick Mutchmore, Paul Bouchard, François R. Doucet, Mohamad Sabsabi<br/>Detection of sulfur by optical emission spectroscopy generally presents some difficulties because the strongest lines are in the vacuum UV below 185 nm and therefore are readily absorbed by oxygen molecules in air. A novel concept for a low-cost and efficient system to detect sulfur using near-IR ... [Appl. Opt. 51, B7-B12 (2012)] Thu, 26 Jan 2012 00:00:00 EST Multiband sensor using thick holographic gratings for sulfur detection by laser-induced breakdown spectroscopy Daniel Gagnon Simon Lessard Marc Verhaegen Patrick Mutchmore Paul Bouchard François R. Doucet Mohamad Sabsabi Detection of sulfur by optical emission spectroscopy generally presents some difficulties because the strongest lines are in the vacuum UV below 185 nm and therefore are readily absorbed by oxygen molecules in air. A novel concept for a low-cost and efficient system to detect sulfur using near-IR ... Optical Society of America 2012-03-01 EN doi:10.1364/AO.51.0000B7 Applied Optics, Vol. 51, Issue 7, pp. B7-B12 © 2012 Optical Society of America http://www.opticsinfobase.org/abstract.cfm?URI=ao-51-4-439 Karl Segl, Rudolf Richter, Theres Küster, Hermann Kaufmann<br/>An end-to-end sensor simulation is a proper tool for the prediction of the sensor’s performance over a range of conditions that cannot be easily measured. In this study, such a tool has been developed that enables the assessment of the optimum spectral resolution configuration of a sensor ... [Appl. Opt. 51, 439-449 (2012)] Thu, 26 Jan 2012 00:00:00 EST End-to-end sensor simulation for spectral band selection and optimization with application to the Sentinel-2 mission Karl Segl Rudolf Richter Theres Küster Hermann Kaufmann An end-to-end sensor simulation is a proper tool for the prediction of the sensor’s performance over a range of conditions that cannot be easily measured. In this study, such a tool has been developed that enables the assessment of the optimum spectral resolution configuration of a sensor ... Optical Society of America 2012-02-01 EN doi:10.1364/AO.51.000439 Applied Optics, Vol. 51, Issue 4, pp. 439-449 © 2012 Optical Society of America http://www.opticsinfobase.org/abstract.cfm?URI=ao-51-4-450 Duc Minh Nguyen, Stéphane Blin, Thanh Nam Nguyen, Sy Dat Le, Laurent Provino, Monique Thual, Thierry Chartier<br/>We propose a new solution for modal decomposition in multimode fibers, based on a spectral and spatial imaging technique. The appearance of spurious modes in the spectral and spatial processing of the images at the output of the fiber under test when it has more than two modes is demonstrated ... [Appl. Opt. 51, 450-456 (2012)] Thu, 26 Jan 2012 00:00:00 EST Modal decomposition technique for multimode fibers Duc Minh Nguyen Stéphane Blin Thanh Nam Nguyen Sy Dat Le Laurent Provino Monique Thual Thierry Chartier We propose a new solution for modal decomposition in multimode fibers, based on a spectral and spatial imaging technique. The appearance of spurious modes in the spectral and spatial processing of the images at the output of the fiber under test when it has more than two modes is demonstrated ... Optical Society of America 2012-02-01 EN doi:10.1364/AO.51.000450 Applied Optics, Vol. 51, Issue 4, pp. 450-456 © 2012 Optical Society of America http://www.opticsinfobase.org/abstract.cfm?URI=ao-51-4-457 Yong-Liang Xiao, Xianyu Su, Wenjing Chen, Yuankun Liu<br/>Three-dimensional (3D) shape measurement of an aspheric mirror with fringe reflection photogrammetry involves three steps: correspondence matching, triangulation, and bundle adjustment. Correspondence matching is realized by absolute phase tracking and triangulation is computed by the intersection ... [Appl. Opt. 51, 457-464 (2012)] Thu, 26 Jan 2012 00:00:00 EST Three-dimensional shape measurement of aspheric mirrors with fringe reflection photogrammetry Yong-Liang Xiao Xianyu Su Wenjing Chen Yuankun Liu Three-dimensional (3D) shape measurement of an aspheric mirror with fringe reflection photogrammetry involves three steps: correspondence matching, triangulation, and bundle adjustment. Correspondence matching is realized by absolute phase tracking and triangulation is computed by the intersection ... Optical Society of America 2012-02-01 EN doi:10.1364/AO.51.000457 Applied Optics, Vol. 51, Issue 4, pp. 457-464 © 2012 Optical Society of America http://www.opticsinfobase.org/abstract.cfm?URI=ao-51-4-465 Pavel Pavliček, Ondřej Hýbl<br/>White-light interferometry on rough surfaces is an optical method for the measurement of the geometrical form of objects. The longitudinal coordinate of the measured surface is obtained from the measured interferogram by means of an evaluation method. However, the longitudinal coordinate cannot be ... [Appl. Opt. 51, 465-473 (2012)] Thu, 26 Jan 2012 00:00:00 EST White-light interferometry on rough surfaces—measurement uncertainty caused by noise Pavel Pavliček Ondřej Hýbl White-light interferometry on rough surfaces is an optical method for the measurement of the geometrical form of objects. The longitudinal coordinate of the measured surface is obtained from the measured interferogram by means of an evaluation method. However, the longitudinal coordinate cannot be ... Optical Society of America 2012-02-01 EN doi:10.1364/AO.51.000465 Applied Optics, Vol. 51, Issue 4, pp. 465-473 © 2012 Optical Society of America http://www.opticsinfobase.org/abstract.cfm?URI=ao-51-4-A11 William T. Rhodes<br/>The problem of high-resolution imaging through long horizontal-path ground-level turbulence has gone unsolved since it was first addressed many decades ago. In this paper I describe a method that shows promise for diffraction-limited imaging through ground-level turbulence with large (meters) ... [Appl. Opt. 51, A11-A16 (2012)] Thu, 26 Jan 2012 00:00:00 EST Time-average Fourier telescopy: a scheme for high-resolution imaging through horizontal-path turbulence William T. Rhodes The problem of high-resolution imaging through long horizontal-path ground-level turbulence has gone unsolved since it was first addressed many decades ago. In this paper I describe a method that shows promise for diffraction-limited imaging through ground-level turbulence with large (meters) ... Optical Society of America 2012-02-01 EN doi:10.1364/AO.51.000A11 Applied Optics, Vol. 51, Issue 4, pp. A11-A16 © 2012 Optical Society of America http://www.opticsinfobase.org/abstract.cfm?URI=ao-51-4-474 Eva Halenková, A. Černoch, K. Lemr, J. Soubusta, S. Drusová<br/>We report on experimental implementation of a multifunctional two-photon state analyzer. The device aims to be compact and able to provide several important characteristics about any two-photon quantum state. It operates in two modes: first mode is the two-photon interference analysis giving the ... [Appl. Opt. 51, 474-478 (2012)] Thu, 26 Jan 2012 00:00:00 EST Experimental implementation of the multifunctional compact two-photon state analyzer Eva Halenková A. Černoch K. Lemr J. Soubusta S. Drusová We report on experimental implementation of a multifunctional two-photon state analyzer. The device aims to be compact and able to provide several important characteristics about any two-photon quantum state. It operates in two modes: first mode is the two-photon interference analysis giving the ... Optical Society of America 2012-02-01 EN doi:10.1364/AO.51.000474 Applied Optics, Vol. 51, Issue 4, pp. 474-478 © 2012 Optical Society of America http://www.opticsinfobase.org/abstract.cfm?URI=ao-51-4-479 Gustavo Forte, Alberto Lencina, Myrian Tebaldi, Néstor Bolognini<br/>In our proposal a light intensity distribution generated by an incoherently illuminated planar amplitude grating is projected into a photorefractive crystal. This 3D distribution is mapped as an index refractive perturbation via the photorefractive effect thereby generating a volume phase grating. ... [Appl. Opt. 51, 479-485 (2012)] Thu, 26 Jan 2012 00:00:00 EST Talbot effect by a photorefractive volume phase grating Gustavo Forte Alberto Lencina Myrian Tebaldi Néstor Bolognini In our proposal a light intensity distribution generated by an incoherently illuminated planar amplitude grating is projected into a photorefractive crystal. This 3D distribution is mapped as an index refractive perturbation via the photorefractive effect thereby generating a volume phase grating. ... Optical Society of America 2012-02-01 EN doi:10.1364/AO.51.000479 Applied Optics, Vol. 51, Issue 4, pp. 479-485 © 2012 Optical Society of America http://www.opticsinfobase.org/abstract.cfm?URI=ao-51-4-A1 Dayan Li, Damien P. Kelly, Raoul Kirner, John T. Sheridan<br/>The statistical properties of speckles in paraxial optical systems depend on the system parameters. In particular, the speckle orientation and the lateral dependence (x and y) of the longitudinal speckle size can vary significantly. For example, the off-axis longitudinal correlation length remains ... [Appl. Opt. 51, A1-A10 (2012)] Wed, 25 Jan 2012 00:00:00 EST Speckle orientation in paraxial optical systems Dayan Li Damien P. Kelly Raoul Kirner John T. Sheridan The statistical properties of speckles in paraxial optical systems depend on the system parameters. In particular, the speckle orientation and the lateral dependence (x and y) of the longitudinal speckle size can vary significantly. For example, the off-axis longitudinal correlation length remains ... Optical Society of America 2012-02-01 EN doi:10.1364/AO.51.0000A1 Applied Optics, Vol. 51, Issue 4, pp. A1-A10 © 2012 Optical Society of America http://www.opticsinfobase.org/abstract.cfm?URI=ao-51-4-429 Tadatoshi Tanifuji, Naoya Nishio, Kazuya Okimatsu, Shougo Tabata, Yasunari Hashimoto<br/>Finite-difference time-domain (FDTD) analysis has been used to predict the time-resolved reflectance from multilayered slabs with a nonscattering layer. Light propagation across the nonscattering layer was calculated based on the light intensity characteristics along a ray in free space. Additional ... [Appl. Opt. 51, 429-438 (2012)] Wed, 25 Jan 2012 00:00:00 EST Finite-difference time-domain analysis of time-resolved reflectance from an adult head model composed of multilayered slabs with a nonscattering layer Tadatoshi Tanifuji Naoya Nishio Kazuya Okimatsu Shougo Tabata Yasunari Hashimoto Finite-difference time-domain (FDTD) analysis has been used to predict the time-resolved reflectance from multilayered slabs with a nonscattering layer. Light propagation across the nonscattering layer was calculated based on the light intensity characteristics along a ray in free space. Additional ... Optical Society of America 2012-02-01 EN doi:10.1364/AO.51.000429 Applied Optics, Vol. 51, Issue 4, pp. 429-438 © 2012 Optical Society of America http://www.opticsinfobase.org/abstract.cfm?URI=ao-51-4-408 Sarun Sumriddetchkajorn, Chakkrit Kamtongdee<br/>This paper proposes and experimentally demonstrates for what is believed to be the first time a highly sought-after optical structure for highly-accurate identification of the silkworm pupa gender. The key idea is to exploit a long wavelength optical beam in the red or near infrared spectrum that ... [Appl. Opt. 51, 408-412 (2012)] Tue, 24 Jan 2012 00:00:00 EST Optical penetration-based silkworm pupa gender sensor structure Sarun Sumriddetchkajorn Chakkrit Kamtongdee This paper proposes and experimentally demonstrates for what is believed to be the first time a highly sought-after optical structure for highly-accurate identification of the silkworm pupa gender. The key idea is to exploit a long wavelength optical beam in the red or near infrared spectrum that ... Optical Society of America 2012-02-01 EN doi:10.1364/AO.51.000408 Applied Optics, Vol. 51, Issue 4, pp. 408-412 © 2012 Optical Society of America http://www.opticsinfobase.org/abstract.cfm?URI=ao-51-4-413 Haixia Wang, Qian Kemao<br/>Fringe patterns produced by various optical interferometric techniques encode information such as shape, deformation, and refractive index. Denoising and demodulation are two important procedures to retrieve information from a single closed fringe pattern. Various existing denoising and ... [Appl. Opt. 51, 413-421 (2012)] Tue, 24 Jan 2012 00:00:00 EST Quality-guided orientation unwrapping for fringe direction estimation Haixia Wang Qian Kemao Fringe patterns produced by various optical interferometric techniques encode information such as shape, deformation, and refractive index. Denoising and demodulation are two important procedures to retrieve information from a single closed fringe pattern. Various existing denoising and ... Optical Society of America 2012-02-01 EN doi:10.1364/AO.51.000413 Applied Optics, Vol. 51, Issue 4, pp. 413-421 © 2012 Optical Society of America http://www.opticsinfobase.org/abstract.cfm?URI=ao-51-4-422 Ranjith Rajasekharan, Qing Dai, Haider Butt, Kanghee Won, Timothy D. Wilkinson, Gehan A. J. Amaratunga<br/>This paper presents experimental optimization of number and geometry of nanotube electrodes in a liquid crystal media from wavefront aberrations for realizing nanophotonic devices. The refractive-index gradient profiles from different nanotube geometries—arrays of one, three, four, and ... [Appl. Opt. 51, 422-428 (2012)] Tue, 24 Jan 2012 00:00:00 EST Optimization of nanotube electrode geometry in a liquid crystal media from wavefront aberrations Ranjith Rajasekharan Qing Dai Haider Butt Kanghee Won Timothy D. Wilkinson Gehan A. J. Amaratunga This paper presents experimental optimization of number and geometry of nanotube electrodes in a liquid crystal media from wavefront aberrations for realizing nanophotonic devices. The refractive-index gradient profiles from different nanotube geometries—arrays of one, three, four, and ... Optical Society of America 2012-02-01 EN doi:10.1364/AO.51.000422 Applied Optics, Vol. 51, Issue 4, pp. 422-428 © 2012 Optical Society of America