Optical polarization grating induced liquid crystal micro-structure using azo-dye command layer

被引：80
|
作者：
Presnyakov, Vladimir [1 ]
Asatryan, Karen
Galstian, Tigran
机构：
[1] Univ Laval, Ctr Opt Photon & Laser, Quebec City, PQ G1K 7P4, Canada
[2] Hong Kong Univ Sci & Technol, Kowloon, Hong Kong, Peoples R China
来源：
OPTICS EXPRESS | 2006年 / 14卷 / 22期
关键词：
ALIGNMENT; PHOTOALIGNMENT;
D O I：
10.1364/OE.14.010558
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We create planar-periodic alignment in nematic liquid crystal (LC) cell by using a command layer of azo-dye molecules directly deposited on the cell substrates and exposed with two interfering laser beams of opposite circular polarizations. Permanent high efficiency polarization gratings are thus created. The diffraction efficiency of those gratings is controlled by a uniform electric field applied across the cell. The electrooptical properties of such polarization gratings are studied. Obtained gratings can be used for electrically controlled discrimination and detection of polarized components of light. (c) 2006 Optical Society of America.
引用
收藏
页码：10558 / 10564
页数：7
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