Optical switch of diffractive light from a BCT photonic crystal based on HPDLC doped with azo component

被引：18

作者：

Li, Ming Shian ^{[1
]}

Fuh, Andy Ying-Guey ^{[1
,2
,3
]}

Wu, Shing-Trong ^{[1
]}

机构：

[1] Natl Cheng Kung Univ, Dept Phys, Tainan 701, Taiwan

[2] Natl Cheng Kung Univ, Inst Electroopt Sci & Engn, Tainan 701, Taiwan

[3] Natl Cheng Kung Univ, Adv Optoelect Technol Ctr, Tainan 701, Taiwan

来源：

OPTICS LETTERS | 2011年 / 36卷 / 19期

关键词：

DISPERSED LIQUID-CRYSTAL; DEFECT MODE; GRATINGS;

D O I：

10.1364/OL.36.003864

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

This study demonstrates an optical switch of the diffractive light from a body-centered tetragonal photonic crystal based on holographic polymer-dispersed liquid crystals that are fabricated using two-beam interference with multiple exposures. The liquid crystal-rich regions form the lattice points of the PC, which contains a liquid crystal/azo-dye mixture. The concentration of the cis isomer changes under laser light exposure; this change, in turn, modulates the effective index of the LCs, and then switches diffractive light. (C) 2011 Optical Society of America

引用

页码：3864 / 3866

页数：3

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