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

页码：117 / 122

页数：6

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