LCoS display phase self-calibration method based on diffractive lens schemes
An experimental method to calibrate Liquid Crystal on Silicon (LCoS) displays by self-generating lens configurations on the studied device is proposed in this paper. On the one hand, a split-lens is displayed in the LCoS to self-generate an interference pattern from which the phase-voltage curve of...
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2018
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| Acceso en línea: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_01438166_v106_n_p147_Zhang http://hdl.handle.net/20.500.12110/paper_01438166_v106_n_p147_Zhang |
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paper:paper_01438166_v106_n_p147_Zhang |
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paper:paper_01438166_v106_n_p147_Zhang2023-06-08T15:11:56Z LCoS display phase self-calibration method based on diffractive lens schemes Calibration Liquid crystals Optical metrology Phase shifting interferometry Surface measurement Adaptive optics Calibration Light modulators Liquid crystals Optical projectors Surface measurement Experimental methods Experimental set up Interference patterns Liquid-crystal-on-silicon displays Optical Metrology Phase shifting Interferometry Self-calibration method Surface inhomogeneity Display devices An experimental method to calibrate Liquid Crystal on Silicon (LCoS) displays by self-generating lens configurations on the studied device is proposed in this paper. On the one hand, a split-lens is displayed in the LCoS to self-generate an interference pattern from which the phase-voltage curve of the modulator is calculated. On the other hand, a microlens array is displayed on the LCoS, within a same experimental set-up, to implement a Shack-Hartmann (S-H) wavefront sensor, from which the display surface profile is retrieved. Specifically, by means of a feasible set-up, the proposed method allows measuring the deviation from flatness of the LCoS displays as well as to determine the phase-voltage response of phase-only SLMs. Experimental results demonstrate a linear tendency phase-voltage curve that ranges from 0 rad up to ∼6.28 rad, for the used light wavelength. Moreover, by extracting the LCoS phase distribution measured with the S-H configuration, the LCoS surface inhomogeneity is corrected by 95%. © 2018 Elsevier Ltd 2018 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_01438166_v106_n_p147_Zhang http://hdl.handle.net/20.500.12110/paper_01438166_v106_n_p147_Zhang |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
Calibration Liquid crystals Optical metrology Phase shifting interferometry Surface measurement Adaptive optics Calibration Light modulators Liquid crystals Optical projectors Surface measurement Experimental methods Experimental set up Interference patterns Liquid-crystal-on-silicon displays Optical Metrology Phase shifting Interferometry Self-calibration method Surface inhomogeneity Display devices |
| spellingShingle |
Calibration Liquid crystals Optical metrology Phase shifting interferometry Surface measurement Adaptive optics Calibration Light modulators Liquid crystals Optical projectors Surface measurement Experimental methods Experimental set up Interference patterns Liquid-crystal-on-silicon displays Optical Metrology Phase shifting Interferometry Self-calibration method Surface inhomogeneity Display devices LCoS display phase self-calibration method based on diffractive lens schemes |
| topic_facet |
Calibration Liquid crystals Optical metrology Phase shifting interferometry Surface measurement Adaptive optics Calibration Light modulators Liquid crystals Optical projectors Surface measurement Experimental methods Experimental set up Interference patterns Liquid-crystal-on-silicon displays Optical Metrology Phase shifting Interferometry Self-calibration method Surface inhomogeneity Display devices |
| description |
An experimental method to calibrate Liquid Crystal on Silicon (LCoS) displays by self-generating lens configurations on the studied device is proposed in this paper. On the one hand, a split-lens is displayed in the LCoS to self-generate an interference pattern from which the phase-voltage curve of the modulator is calculated. On the other hand, a microlens array is displayed on the LCoS, within a same experimental set-up, to implement a Shack-Hartmann (S-H) wavefront sensor, from which the display surface profile is retrieved. Specifically, by means of a feasible set-up, the proposed method allows measuring the deviation from flatness of the LCoS displays as well as to determine the phase-voltage response of phase-only SLMs. Experimental results demonstrate a linear tendency phase-voltage curve that ranges from 0 rad up to ∼6.28 rad, for the used light wavelength. Moreover, by extracting the LCoS phase distribution measured with the S-H configuration, the LCoS surface inhomogeneity is corrected by 95%. © 2018 Elsevier Ltd |
| title |
LCoS display phase self-calibration method based on diffractive lens schemes |
| title_short |
LCoS display phase self-calibration method based on diffractive lens schemes |
| title_full |
LCoS display phase self-calibration method based on diffractive lens schemes |
| title_fullStr |
LCoS display phase self-calibration method based on diffractive lens schemes |
| title_full_unstemmed |
LCoS display phase self-calibration method based on diffractive lens schemes |
| title_sort |
lcos display phase self-calibration method based on diffractive lens schemes |
| publishDate |
2018 |
| url |
https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_01438166_v106_n_p147_Zhang http://hdl.handle.net/20.500.12110/paper_01438166_v106_n_p147_Zhang |
| _version_ |
1768542120567635968 |