12 April 1990 Optical Nonlinearity And Dynamic Holography Of Nematic Liquid Crystals
Author Affiliations +
Proceedings Volume 1183, Holography '89; (1990) https://doi.org/10.1117/12.963814
Event: Holography '89, 1989, Varna, Bulgaria
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.
© (1990) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
A. I. Khizhnyak, I. P. Pinkevich, Yu. A. Reznikov, V. Yu. Reshetnyak., O. Yaroshchuk Kiev State University, "Optical Nonlinearity And Dynamic Holography Of Nematic Liquid Crystals", Proc. SPIE 1183, Holography '89, (12 April 1990); doi: 10.1117/12.963814; https://doi.org/10.1117/12.963814
PROCEEDINGS
9 PAGES


SHARE
RELATED CONTENT

Polarizability anisotropy of CBn molecules
Proceedings of SPIE (December 14 1999)
Measurement of x(3) in novel liquid-crystal materials
Proceedings of SPIE (August 18 1992)
Why certain liquids have the liquid crystal properties
Proceedings of SPIE (September 01 2004)
Local field of light wave in nematics
Proceedings of SPIE (August 02 1995)

Back to Top