Chiral azobenzene nematics phototunable with a green laser beam

被引：22
|
作者：
Serak, Svetlana V. [1 ]
Tabiryan, Nelson V. [1 ]
Chilaya, Guram [2 ]
Chanishvili, Andro [2 ]
Petriashvili, Gia [2 ]
机构：
[1] Beam Engn Adv Measurements Co, Winter Pk, FL 32789 USA
[2] Georgian Acad Sci, Inst Cybernet, Tbilisi, Georgia
来源：
MOLECULAR CRYSTALS AND LIQUID CRYSTALS | 2008年 / 488卷
关键词：
azobenzene; Bragg reflection; chiral dopants; laser; liquid crystals;
D O I：
10.1080/15421400802240144
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Phototuning of Bragg reflection bandgap from green to blue and from red to green wavelengths was induced with a green (lambda = 532 nm) laser beam in a cholesteric liquid crystal based on highly sensitive azobenzene nematic BEAM 1005 (BEAM Co.) and UV transparent non-photoisomerizable optically active dopant ZLI-6248 (R-2011) (Merck Ltd.). Optical switching between reflected and transmitted beams, as well as nonlinear transmission and reflection due to Bragg reflection band shift are studied in detail.
引用
收藏
页码：42 / 55
页数：14
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