On the mechanism of orientational photorefractivity in polymer dispersed nematics

被引:17
作者
Golemme, A [1 ]
Kippelen, B
Peyghambarian, N
机构
[1] Univ Calabria, Dipartimento Chim, I-87030 Rende, Italy
[2] Univ Arizona, Ctr Opt Sci, Tucson, AZ 85721 USA
基金
美国国家科学基金会;
关键词
D O I
10.1016/S0009-2614(00)00132-9
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
An unusual dependence of the diffraction efficiency on the applied electric field was observed in four-wave mixing experiments on polymer dispersed nematics. The data were interpreted on the basis of a simple model which considers the orientational nature of the photorefractivity in liquid crystalline materials. Such model should also be of relevance for any material with orientational contributions to photorefractivity. (C) 2000 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:655 / 660
页数:6
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