Photoinduced Polarization-Independent Refractive Index Modulation Using Azo-Dye Doped Liquid Crystal

被引：0
|
作者：
Tagashira, K. [1 ]
Yoshida, H. [1 ]
Fujii, A. [1 ]
Ozaki, M. [1 ]
机构：
[1] Osaka Univ, Div Elect Elect & Informat Engn, Suita, Osaka 5650871, Japan
来源：
MOLECULAR CRYSTALS AND LIQUID CRYSTALS | 2011年 / 543卷
关键词：
Azo dye; nematic liquid crystal; photoisomarization; polarization independence; refractive index modulation; FILTER; ETALON;
D O I：
10.1080/15421406.2011.568348
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
We demonstrate polarization-independent refractive index modulation using an azo-dye doped liquid crystal (azo-LC). The azo-LC is aligned homeotropically and irradiated by ultraviolet (UV) light resulting in optically induced nematic-isotropic phase transition. This homeotropic-isotropic transition causes a refractive index modulation, which is independent of polarization for light travelling perpendicularly to the azo-LC layer. In order to evaluate the amount of the modulation, we fabricated an etalon which contains a homeotropically aligned azo-LC layer between the mirrors, and observed the polarization-independent refractive index modulation by 0.03.
引用
收藏
页码：117 / 122
页数：6
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