Non-Electric Field Photorefractive Effect Using Polymer Composites

被引：13

作者：

Nishide, Jun-ichi ^{[1
]}

Tanaka, Akiyoshi ^{[1
]}

Hirama, Yoshiaki ^{[1
]}

Sasabe, Hiroyuki ^{[1
]}

机构：

[1] CIST, Chitose, Hokkaido 0668655, Japan

来源：

MOLECULAR CRYSTALS AND LIQUID CRYSTALS | 2008年 / 491卷

关键词：

diffraction efficiency; image processing; net gain; non-electric field; PEDOT-block-PEG;

D O I：

10.1080/15421400802330424

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

We prepared photorefractive composites using poly(3,4-ethylenedioxythiophene)-block-polyethylene glycol (PEDOT-block-PEG) as a key material doped with nonlinear optical chromophore ((S)-(-)-l-(4-Nitrophenyl)-2-pyrrolidinemethanol (NPP). To adjust the optical absorbancc PMMA was used as a matrix. Photorefractive properties were characterized by means of a two beam coupling (2BC) method and a degenerated four wave mixing (DFWM) method. We successfully observed asymmetric 2BC under non-electric field: Photorefractive characteristics obtained are a net 2BC gain of 175cm(-1), a diffraction efficiency of 49%, and a phase shift of 90 degrees. Furthermore, we could demonstrate its high performance by DFWM image processing experiment.

引用

页码：217 / 222

页数：6

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