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Proceedings Paper

Nematic liquid crystal (NLC) orientational instability in the absorbed light wave field with spatially modulated intensity
Author(s): Victor Yu. Reshetnyak; Igor P. Pinkevich; Mikhailo F. Lednei
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Paper 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.

Paper Details

Date Published: 24 April 1995
PDF: 9 pages
Proc. SPIE 2408, Liquid Crystal Materials, Devices, and Displays, (24 April 1995);
Show Author Affiliations
Victor Yu. Reshetnyak, Institute of Surface Chemistry (Ukraine)
Igor P. Pinkevich, Kiev State Univ. (Ukraine)
Mikhailo F. Lednei, Kiev State Univ. (Ukraine)


Published in SPIE Proceedings Vol. 2408:
Liquid Crystal Materials, Devices, and Displays
Ranganathan Shashidhar; Uzi Efron, Editor(s)

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