Investigation of the influence of external electric field on the anisotropy of nematic liquid crystals by X-Ray interferometry

被引：2
|
作者：
Gasparyan, L. G. [1 ]
Mkrtchyan, V. P. [1 ]
Dadalyan, T. K. [1 ]
机构：
[1] Yerevan State Univ, Yerevan, Armenia
来源：
JOURNAL OF CONTEMPORARY PHYSICS-ARMENIAN ACADEMY OF SCIENCES | 2017年 / 52卷 / 03期
关键词：
X-ray interferometry; nematic liquid crystal; electric field;
D O I：
10.3103/S1068337217030136
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
The influence of external electric field on the anisotropy of a layer of nematic liquid crystal (NLC) was investigated by means of X-Ray interferometric method. It was shown that in Xray range of the spectrum NLC E7 is a positive anisotropic medium. The decrements of a layer of NLC subjected to the electric field were calculated. As a result of reorientation of NLC molecules perpendicular to the cell substrate, the decrements prove equal for cases when the optical axis of a sample was initially perpendicular or parallel to the X-ray beam polarization vector.
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页码：271 / 275
页数：5
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