Photoinduced critical opalescence and reversible all-optical switching in photosensitive liquid crystals

被引：32

作者：

Tabiryan, NV ^{[1
]}

Serak, SV ^{[1
]}

Grozhik, VA ^{[1
]}

机构：

[1] Beam Engn Adv Measurements Corp, Winter Pk, FL 32789 USA

来源：

JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS | 2003年 / 20卷 / 03期

关键词：

D O I：

10.1364/JOSAB.20.000538

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We present the results of a study of the critical opalescence that is observed as a result of reversible trans-cis photoisomerization in the vicinity of photoinduced isothermal phase transitions in azobenzene liquid crystals (azo LCs). The opalescence is caused by the generation of randomly oriented microdomains and microdroplets of isotropic phase in the illuminated area of the azo LC. Transformations between the strongly light-scattering nematic phase and the transparent isotropic phase of the azo LC are induced all-optically by combination of green (lambda = 532 nm) and violet (lambda = 409 nm) laser beams. (C) 2003 Optical Society of America.

引用

页码：538 / 544

页数：7

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