Complex transmission of liquid crystal spatial light modulators in optical signal processing applications

Christof Zeile; Ernst H. Lueder

doi:10.1117/12.151220

13 August 1993 Complex transmission of liquid crystal spatial light modulators in optical signal processing applications

Christof Zeile, Ernst H. Lueder

Author Affiliations +

Proceedings Volume 1911, Liquid Crystal Materials, Devices, and Applications II; (1993) https://doi.org/10.1117/12.151220
Event: IS&T/SPIE's Symposium on Electronic Imaging: Science and Technology, 1993, San Jose, CA, United States

Abstract

We use simulation methods based on those proposed by Baur, Windscheid, Berreman, etc. to get the complex transmission of the liquid crystal (LC) cell as a function of the properties of the LC material, cell dimensions, and the applied voltage. As a result, we obtain a complex locus representing the set of possible combinations of amplitude and phase as a function of the voltage applied to the cell. We propose criteria to estimate the suitability of the LC-cell for requirements for the modulation of phase and amplitude. Synthesis of the cell for given requirements is made by an appropriate selection of the thickness of the LC layer, angle of polarizers to rubbing direction, total twist angle, properties of the LC material, and wavelength of the light. The proposed criteria describe the ability of the LC spatial light modulator phase and amplitude of the lightwave and also give information about the difference between the desired and the realized transfer function.

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Christof Zeile and Ernst H. Lueder "Complex transmission of liquid crystal spatial light modulators in optical signal processing applications", Proc. SPIE 1911, Liquid Crystal Materials, Devices, and Applications II, (13 August 1993); https://doi.org/10.1117/12.151220

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