Optically controlled alignment of liquid crystal on polyimide films exposed to undulator radiation

被引：8

作者：

Shitomi, H ^{[1
]}

Ibuki, T

Matsumoto, S

Onuki, H

机构：

[1] Electrotech Lab, Tsukuba, Ibaraki 3058568, Japan

[2] Kyoto Univ Educ, Fushimi Ku, Kyoto 6120863, Japan

[3] Meiji Univ, Tama Ku, Kawasaki, Kanagawa 2141863, Japan

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS | 1999年 / 38卷

关键词：

photo-alignment; liquid crystal; undulator radiation; linearly polarized Far-UV;

D O I：

10.7567/JJAPS.38S1.176

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Liquid crystal (LC) alignment properties on photo-exposed polyimide films were studied in the Wand VUV regions using linearly polarized synchrotron radiation from the Onuki-type polarizing undulator installed in the electron storage ring NIJI-II in ETL. It was found that the LC alignment uniformity depends on the UV and VUV exposure conditions, especially on the wavelength of the radiation. The photoabsorption spectrum of polyimide films was also measured in both IN and VUV regions. It was concluded that at least two mechanisms exist in the photo-induced alignment of LC molecules on the polyimide films.

引用

页码：176 / 179

页数：4

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