Optically active (cholesteric with intermediate chirality) LC structure for light modulation

Gouram S. Chilaya; Andro Chanishvili; David Sikharulidze

doi:10.1117/12.215578

2 August 1995 Optically active (cholesteric with intermediate chirality) LC structure for light modulation

Gouram S. Chilaya, Andro Chanishvili, David Sikharulidze

Proceedings Volume 2372, Liquid Crystals: Materials Science and Applications; (1995) https://doi.org/10.1117/12.215578
Event: Liquid Crystals: Materials Science and Applications, 1994, Zakopane, Poland

Abstract

A new electro-optic effect in an optically active nematic chiral structure beyond Mauguin's region has been studied. This structure rotates the polarization plane of incident light, and a liquid crystal with positive dielectric anisotropy sandwiched between crossed polarizers is switched from transparent into dark state in electric field. The characteristic features of this structure are: (a) the absence of oscillations in the transmission-voltage characteristics, (b) low demands on surface conditions (including nonrubbed cells), (c) the ability to function in any position between crossed polarizers, and (d) wide viewing angle.

Citation Download Citation

Gouram S. Chilaya, Andro Chanishvili, and David Sikharulidze "Optically active (cholesteric with intermediate chirality) LC structure for light modulation", Proc. SPIE 2372, Liquid Crystals: Materials Science and Applications, (2 August 1995); https://doi.org/10.1117/12.215578

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