Optical reorientation of nematic liquid crystals in the presence of photoisomerization

被引:117
作者
Janossy, I [1 ]
Szabados, L [1 ]
机构
[1] Hungarian Acad Sci, Res Inst Solid State Phys & Opt, H-1525 Budapest, Hungary
来源
PHYSICAL REVIEW E | 1998年 / 58卷 / 04期
关键词
D O I
10.1103/PhysRevE.58.4598
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
The optical reorientation of nematic liquid crystals doped with azo dyes is studied. It is shown that in the presence of absorption both the trans and cis isomers enhance significantly the optical torque; they contribute, however, with opposite signs to the net enhancement and tend to cancel each other's effect. The anomalous angular dependence of optical reorientation reported by Zolotko et al. is explained by considering the photoinduced trans-cis equilibrium. [S1063-651X(98)03510-7].
引用
收藏
页码:4598 / 4604
页数:7
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