Surface-mediated director reorientation in a nematic cell to action of light

被引：0
|
作者：
Andrienko, D [1 ]
Kurioz, Y [1 ]
Reznikov, Y [1 ]
Reshetnyak, V [1 ]
机构：
[1] Natl Acad Sci, Inst Phys, Kiev, Ukraine
来源：
LIQUID CRYSTALS: PHYSICS, TECHNOLOGY AND APPLICATIONS | 1998年 / 3318卷
关键词：
liquid crystal; anchoring energy; orientational transitions;
D O I：
10.1117/12.299993
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Surface driven reorientation effects in a nematic liquid crystal cell caused by light-induced changes of the anchoring energy were studied. The threshold director reorientation takes place for the perpendicular directions of the reference and light-induced easy axes. The transition was found to be close to the second-order one revealing the critical increase of the director thermal fluctuations in the vicinity of the transition point. The mentioned effects were experimentally studied in cells of liquid crystal 5CB aligned by the photosensitive azo-containing polymer layer.
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页码：312 / 316
页数：5
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