Effect of small cholesteric admixtures on the electrooptical characteristics of nematic liquid crystal cells

被引：0
|
作者：
Belyaev, VV [1 ]
机构：
[1] Komet Sci Res Inst, Moscow, Russia
来源：
JOURNAL OF OPTICAL TECHNOLOGY | 2000年 / 67卷 / 06期
关键词：
D O I：
10.1364/JOT.67.000515
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
The dependence of the electrooptical response (the current-voltage characteristic and the switching time! on the thickness of the cell and on the concentration of a cholesteric admixture to the nematic liquid crystal is investigated in twist cells with twists of 90 degrees and 270 degrees. The conditions under which the slope of the voltage-contrast characteristics stays the same or decreases are found. It is observed that the relaxation time of the electrooptic response of a liquid-crystal material decreases significantly at the boundary of the zeroth and first Grandjean zones. (C) 2000 The Optical Society of America. [S1070-9762(00)00306-7].
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页码：515 / 519
页数：5
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