Temperature effect on nonlinear refractive indices of liquid crystals in visible and NIR

被引：11
|
作者：
Abdulkareem, L. [1 ,2 ]
Abdalah, S. F. [2 ]
Al Naimee, K. [1 ,2 ]
Meucci, R. [2 ]
机构：
[1] Univ Baghdad, Coll Sci, Dept Phys, Baghdad, Iraq
[2] Ist Nazl Ottica CNR, Largo E Fermi 6, I-50125 Florence, Italy
来源：
OPTICS COMMUNICATIONS | 2016年 / 363卷
关键词：
Extraordinary; Refractive index; Liquid crystal;
D O I：
10.1016/j.optcom.2015.11.013
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
The effect of temperature variation on nonlinear refractive indices of several types of liquid crystals (LCs) compound has been reported. Birefringence and the temperature gradients of refractive indices of the LCs are determined. Five samples have been investigated; two of them are E7 and MLC 6241-000. The other three have been obtained by mixing the previous two LCs in different proportions. The measurements performed at 632 nm and 1550 nm wavelengths using wedged cell refractometer method. The variation in refractive indices and birefringence were fitted theoretically using the modified Vuks equation. Excellent agreement between the fitted values and experimentally is obtained. (C) 2015 Elsevier B.V. All rights reserved.
引用
收藏
页码：188 / 194
页数：7
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