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Proceedings Paper

Optical Nonlinearity And Dynamic Holography Of Nematic Liquid Crystals
Author(s): A. I. Khizhnyak; I. P. Pinkevich; Yu. A. Reznikov; V. Yu. Reshetnyak.; O. Yaroshchuk Kiev State University
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Paper Abstract

The characteristics of conformational optical nonlinearity of nematic liquid crystals (NLC) were investigated. Expressions for NLC nonlinearity tensor as a function of order parameters are obtained for the small concentration of fototransforsed solecules.The dynamic holography procedure has shown that the contribution to the NLC refractive index change under optic nonlinearity lade by the order parameter change is dosinant.The effect of critical increasing of the parameter of nonlinearity near the nesatic-isotropic liquid phase transition was predicted and experimentaly revealed by dynamic holographic method. It was shown that the effect was caused by the increasing of correlation of the photoconformer concetration fluctuation and polarizability molecular fluctuation near phase transition.

Paper Details

Date Published: 12 April 1990
PDF: 9 pages
Proc. SPIE 1183, Holography '89, (12 April 1990); doi: 10.1117/12.963814
Show Author Affiliations
A. I. Khizhnyak, Kiev State University (USSR)
I. P. Pinkevich, Kiev State University (USSR)
Yu. A. Reznikov, Kiev State University (USSR)
V. Yu. Reshetnyak., Kiev State University (USSR)
O. Yaroshchuk Kiev State University, Kiev State Universty (Russian Federation)

Published in SPIE Proceedings Vol. 1183:
Holography '89
Yuri N. Denisyuk; Tung H. Jeong, Editor(s)

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