Optical generation of inversion walls in nematic liquid crystals -: art. no. 041705

被引：14
作者：
Jánossy, I
Prasad, SK
机构：
[1] Hungarian Acad Sci, Res Inst Solid State Phys & Opt, H-1525 Budapest, Hungary
[2] Ctr Liquid Crystal Res, Bangalore 560013, Karnataka, India
来源：
PHYSICAL REVIEW E | 2001年 / 63卷 / 04期
关键词：
D O I：
10.1103/PhysRevE.63.041705
中图分类号：
O35 [流体力学]; O53 [等离子体物理学];
学科分类号：
070204 ; 080103 ; 080704 ;
摘要：
An approach to generate inversion walls in nematic liquid crystals using optical reorientation is described. Planar cells with small pretilt are exposed to an oblique laser beam, which reverses the director tilt angle within the irradiated area. During the electric Freedericksz transition an inversion wall surrounding the laser spot is formed. A theoretical relation is provided for the critical laser intensity necessary to produce an inversion wall. Experimental results in a dye-doped nematic are in satisfactory agreement with the theory.
引用
收藏
页码：417051 / 417057
页数：7
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