Fabrication of a reverse twisted nematic liquid-crystal grating via holographic writing

被引：3
|
作者：
Choi, Hyunhee [1 ]
Wu, J. W.
Park, Byoungchoo
机构：
[1] Ewha Womans Univ, Dept Phys, Seoul 120750, South Korea
[2] Kwangwoon Univ, Dept Electrophys, Seoul 139701, South Korea
来源：
JOURNAL OF THE KOREAN PHYSICAL SOCIETY | 2007年 / 51卷 / 04期
关键词：
reflection hologram; photo-isomerization; liquid crystal; azo-molecule;
D O I：
10.3938/jkps.51.1492
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
By use of a photo-isomerization process occurring inside an azo-polymer alignment layer, a polarization modulation is recorded on an azo-benzene-containing liquid crystal cell in a reflection holographic configuration. A polarization analysis measurement of diffracted orders shows that the resulting structure is a reverse twisted liquid crystal grating. The electro-optic tunability of the diffraction efficiency is also demonstrated.
引用
收藏
页码：1492 / 1496
页数：5
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