Photorefractivity of dye-doped NLC layers and possibility of their application

Janusz Parka

doi:10.1117/12.472191

27 June 2002 Photorefractivity of dye-doped NLC layers and possibility of their application

Janusz Parka

Proceedings Volume 4759, XIV Conference on Liquid Crystals: Chemistry, Physics, and Applications; (2002) https://doi.org/10.1117/12.472191
Event: XIV Conference on Liquid Crystals, Chemistry, Physics, and Applications, 2001, Zakopane, Poland

Abstract

Photorefractive properties and possibility of guest-host effect application for real-time holography have been described. Isothiocyanate nematic liquid mixtures with positive dielectric anisotropy as hosts while antraquinone dyes as guests were used. In dye-doped nematic liquid crystals high diffraction efficiency approaching 20% were obtained. Fast optical grating formation with a time constant (tau) of a few ms have been observed. The dependence of grating formation on strength of applied dc and low frequency of ac electric field, configuration of light polarization and nematic director orientation were reported.

Citation Download Citation

Janusz Parka "Photorefractivity of dye-doped NLC layers and possibility of their application", Proc. SPIE 4759, XIV Conference on Liquid Crystals: Chemistry, Physics, and Applications, (27 June 2002); https://doi.org/10.1117/12.472191

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