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

页码：42 / 55

页数：14

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