Phase grating generation and optical phase conjugation in photorefractive polymer/dissolved liquid crystal composites期刊界 All Journals 搜尽天下杂志传播学术成果专业期刊搜索期刊信息化学术搜索

Phase grating generation and optical phase conjugation in photorefractive polymer/dissolved liquid crystal composites

Authors:	Hiroshi Ono Keiko Kitamura Nobuhiro Kawatsuki

Affiliation:	^a Department of Electrical Engineering, Nagaoka University of Technology, Nagaoka 940-2188, Japan^b Department of Materials Science and Chemistry, Himeji Institute of Technology, Himeji 671-2201, Japan

Abstract:	The orientational photorefractive properties of photorefractive mesogenic composites have been investigated by means of two-beam coupling and degenerate four-wave mixing. Photorefractive mesogenic composites, consisting of low molar mass liquid crystals, polymer, and photoconductive sensitizer, constitute novel organic materials possessing high performance photoreractivity. The refractive index change was estimated on the basis of the theory of two-beam coupling and four-wave mixing, and large index modulation of over 0.01 was obtained.

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