Programmable amplitude apodizers in liquid crystal spatial light modulators
We show the feasibility of two new programmable diffractive optical elements (DOE). On one hand, we demonstrate the realization of programmable apodizers. With the term apodizer we refer to non-uniform amplitude filters used to modify the point-spread function (PSF) of an optical system. On the othe...
Guardado en:
| Autores principales: | , , , , , , |
|---|---|
| Formato: | JOUR |
| Materias: | |
| Acceso en línea: | http://hdl.handle.net/20.500.12110/paper_0277786X_v4457_n_p99_Campos |
| Aporte de: |
| id |
todo:paper_0277786X_v4457_n_p99_Campos |
|---|---|
| record_format |
dspace |
| spelling |
todo:paper_0277786X_v4457_n_p99_Campos2023-10-03T15:16:21Z Programmable amplitude apodizers in liquid crystal spatial light modulators Campos, J. Yzuel, M.J. Márquez, A. Escalera, J.C. Davis, J.A. Iemmi, C. Ledesma, S. Amplitude apodized Fresnel lens Amplitude-only modulation Diffractive optical elements Fresnel lens Inherent equivalent apodizing effect Liquid crystal display Phase-only modulation Programmable apodizer Spatial light modulator Twisted nematic Amplitude modulation Light modulation Light modulators Liquid crystal displays Nematic liquid crystals Numerical methods Optical systems Optical transfer function Phase modulation Amplitude only modulation Fresnel lens Inherent equivalent apodizing effects Phase only modulation Programmable amplitude apodizers Twisted nematic Optical filters We show the feasibility of two new programmable diffractive optical elements (DOE). On one hand, we demonstrate the realization of programmable apodizers. With the term apodizer we refer to non-uniform amplitude filters used to modify the point-spread function (PSF) of an optical system. On the other hand, we show the simultaneous realization of a Fresnel lens and an amplitude filter in a single DOE: The programmable amplitude apodized Fresnel (PAAFL). Two different modulation regimes are required to generate these DOEs: amplitude-only regime for the programmable apodizer and phase-only regime for the PAAFL. We show that a twisted-nematic liquid crystal spatial light modulator (TN-LCSLM) inserted between two wave plates and two polarizers is able to provide both modulation regimes. Different types of amplitude filters, such as axial hyperresolving, transverse apodizing and transverse hyperresolving have been implemented both as programmable apodizers and as PAAFLs. We provide experimental results for the performance of the two new DOEs. The agreement with the numerical results is excellent, thus demonstrating the feasibility of our proposal. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_0277786X_v4457_n_p99_Campos |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
Amplitude apodized Fresnel lens Amplitude-only modulation Diffractive optical elements Fresnel lens Inherent equivalent apodizing effect Liquid crystal display Phase-only modulation Programmable apodizer Spatial light modulator Twisted nematic Amplitude modulation Light modulation Light modulators Liquid crystal displays Nematic liquid crystals Numerical methods Optical systems Optical transfer function Phase modulation Amplitude only modulation Fresnel lens Inherent equivalent apodizing effects Phase only modulation Programmable amplitude apodizers Twisted nematic Optical filters |
| spellingShingle |
Amplitude apodized Fresnel lens Amplitude-only modulation Diffractive optical elements Fresnel lens Inherent equivalent apodizing effect Liquid crystal display Phase-only modulation Programmable apodizer Spatial light modulator Twisted nematic Amplitude modulation Light modulation Light modulators Liquid crystal displays Nematic liquid crystals Numerical methods Optical systems Optical transfer function Phase modulation Amplitude only modulation Fresnel lens Inherent equivalent apodizing effects Phase only modulation Programmable amplitude apodizers Twisted nematic Optical filters Campos, J. Yzuel, M.J. Márquez, A. Escalera, J.C. Davis, J.A. Iemmi, C. Ledesma, S. Programmable amplitude apodizers in liquid crystal spatial light modulators |
| topic_facet |
Amplitude apodized Fresnel lens Amplitude-only modulation Diffractive optical elements Fresnel lens Inherent equivalent apodizing effect Liquid crystal display Phase-only modulation Programmable apodizer Spatial light modulator Twisted nematic Amplitude modulation Light modulation Light modulators Liquid crystal displays Nematic liquid crystals Numerical methods Optical systems Optical transfer function Phase modulation Amplitude only modulation Fresnel lens Inherent equivalent apodizing effects Phase only modulation Programmable amplitude apodizers Twisted nematic Optical filters |
| description |
We show the feasibility of two new programmable diffractive optical elements (DOE). On one hand, we demonstrate the realization of programmable apodizers. With the term apodizer we refer to non-uniform amplitude filters used to modify the point-spread function (PSF) of an optical system. On the other hand, we show the simultaneous realization of a Fresnel lens and an amplitude filter in a single DOE: The programmable amplitude apodized Fresnel (PAAFL). Two different modulation regimes are required to generate these DOEs: amplitude-only regime for the programmable apodizer and phase-only regime for the PAAFL. We show that a twisted-nematic liquid crystal spatial light modulator (TN-LCSLM) inserted between two wave plates and two polarizers is able to provide both modulation regimes. Different types of amplitude filters, such as axial hyperresolving, transverse apodizing and transverse hyperresolving have been implemented both as programmable apodizers and as PAAFLs. We provide experimental results for the performance of the two new DOEs. The agreement with the numerical results is excellent, thus demonstrating the feasibility of our proposal. |
| format |
JOUR |
| author |
Campos, J. Yzuel, M.J. Márquez, A. Escalera, J.C. Davis, J.A. Iemmi, C. Ledesma, S. |
| author_facet |
Campos, J. Yzuel, M.J. Márquez, A. Escalera, J.C. Davis, J.A. Iemmi, C. Ledesma, S. |
| author_sort |
Campos, J. |
| title |
Programmable amplitude apodizers in liquid crystal spatial light modulators |
| title_short |
Programmable amplitude apodizers in liquid crystal spatial light modulators |
| title_full |
Programmable amplitude apodizers in liquid crystal spatial light modulators |
| title_fullStr |
Programmable amplitude apodizers in liquid crystal spatial light modulators |
| title_full_unstemmed |
Programmable amplitude apodizers in liquid crystal spatial light modulators |
| title_sort |
programmable amplitude apodizers in liquid crystal spatial light modulators |
| url |
http://hdl.handle.net/20.500.12110/paper_0277786X_v4457_n_p99_Campos |
| work_keys_str_mv |
AT camposj programmableamplitudeapodizersinliquidcrystalspatiallightmodulators AT yzuelmj programmableamplitudeapodizersinliquidcrystalspatiallightmodulators AT marqueza programmableamplitudeapodizersinliquidcrystalspatiallightmodulators AT escalerajc programmableamplitudeapodizersinliquidcrystalspatiallightmodulators AT davisja programmableamplitudeapodizersinliquidcrystalspatiallightmodulators AT iemmic programmableamplitudeapodizersinliquidcrystalspatiallightmodulators AT ledesmas programmableamplitudeapodizersinliquidcrystalspatiallightmodulators |
| _version_ |
1807314597728747520 |