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Liquid Crystal Absorption Spectra Researched by Polarized Interference Method
Author(s): WANG Ning, LI Dai-lin, ZHU Hua-feng, LI Guo-hua
Pages: 536-
539
Year: 2008
Issue:
5
Journal: Chinese Journal of Liquid Crystals and Displays
Keyword: 液晶; 偏光干涉; 吸收系数; 向列相;
Abstract: 利用偏光干涉法测量了向列相液晶BL-009的吸收系数,得到了入射光波长在500~1 600 nm变化时的液晶吸收谱线,讨论了该曲线随液晶盒所加电压的变化情况.实验结果表明,向列相液晶BL-009在红外波段吸收效应较强,存在3个比较明显的吸收带,随着液晶盒上所加电压的增大,3个吸收带的位置逐渐向短波长(紫外)方向移动,且移动幅度有所不同,而且这种中心波长的漂移随电压的增大逐渐减弱;每个吸收带吸收系数的峰值随电压有所变化,但变化程度不同.
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