Photoinduced destruction of polar structure in dye-pendant polymers studied by second-harmonic generation

被引：16

作者：

Aoki, H

Ishikawa, K

Takezoe, H

Fukuda, A

机构：

[1] Dept. of Organ. and Polymeric Mat., Tokyo Institute of Technology, O-okayama, Meguro-ku

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS | 1996年 / 35卷 / 1A期

关键词：

poled polymer; photoisomerization; second-harmonic generation; SHG; azo dye;

D O I：

10.1143/JJAP.35.168

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Second-harmonic generation (SHG) was observed in polymer/azo dye systems during light irradiation. The SHG activity produced by poling was completely lost by partial trans-cis isomerization in dye-pendant systems, while this phenomenon was observed less in a dye-dispersed system. Taking account of the observations in various polymer matrices, we concluded that the destructive process of the poled structure is amplified through a movement of the polymer main chain induced by the partial photoisomerization of chromophores.

引用

页码：168 / 174

页数：7

共 6 条

[1] PHOTOASSISTED POLING OF PHOTOCHROMIC AND OPTICALLY NONLINEAR MOLECULES IN POLYMER THIN-FILMS [J].