The crossover temperature of nematic liquid crystals in the visible spectral range

被引：14
|
作者：
Kumar, Anant [1 ]
机构：
[1] Univ Patras, Dept Mat Sci, Patras 26504, Greece
来源：
LIQUID CRYSTALS | 2013年 / 40卷 / 10期
关键词：
liquid crystals; optical properties; wavelength; crossover temperature; REFRACTIVE-INDEXES; GRADIENT;
D O I：
10.1080/02678292.2013.807943
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
The temperature gradients of refractive indices, dne/dT and dno/dT, of three nematic liquid crystals (E7, E44, and E48) are analysed at different wavelengths. For the temperature gradient of no, there exists a crossover temperature, Tco. The wavelength dependence of the crossover temperature is reported. The dispersion behaviour of (Delta n) o, the birefringence in the crystalline state or at T = 0 K, is also tested.
引用
收藏
页码：1422 / 1426
页数：5
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