Nematic liquid crystal (NLC) orientational instability in the absorbed light wave field with spatially modulated intensity

Victor Yu. Reshetnyak; Igor P. Pinkevich; Mikhailo F. Lednei

doi:10.1117/12.207510

24 April 1995 Nematic liquid crystal (NLC) orientational instability in the absorbed light wave field with spatially modulated intensity

Victor Yu. Reshetnyak, Igor P. Pinkevich, Mikhailo F. Lednei

Author Affiliations +

Proceedings Volume 2408, Liquid Crystal Materials, Devices, and Displays; (1995) https://doi.org/10.1117/12.207510
Event: IS&T/SPIE's Symposium on Electronic Imaging: Science and Technology, 1995, San Jose, CA, United States

Abstract

The influence of dipole phototransformed molecules on the orientational instability threshold of homeotropic and planar NLC exposed to spatially modulated light is studied. The orientational spatial distribution of the director is calculated, in linear approximation, at the non threshold director reorientation. It is shown that the orientational instability threshold may significantly decrease (increase) and the optical nonlinearity constant may increase (decrease) by orders of magnitude as phototransformed molecules with typical value of permanent electric dipole appear in the nematics.

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Victor Yu. Reshetnyak, Igor P. Pinkevich, and Mikhailo F. Lednei "Nematic liquid crystal (NLC) orientational instability in the absorbed light wave field with spatially modulated intensity", Proc. SPIE 2408, Liquid Crystal Materials, Devices, and Displays, (24 April 1995); https://doi.org/10.1117/12.207510

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