ENHANCED PHOTOREFRACTIVE EFFECT IN HYBRID CONDUCTING POLYMER - LIQUID CRYSTAL STRUCTURES

被引：25

作者：

Bartkiewicz, Stanislaw ^{[1
]}

Miniewicz, Andrzej ^{[1
]}

Kajzar, Francois ^{[2
]}

Zagorska, Malgorzata ^{[3
]}

机构：

[1] Wroclaw Univ Technol, Inst Phys & Theoret Chem, PL-50370 Wroclaw, Poland

[2] CE Saclay, DEIN, LETI, CEA Technol Avancees, F-91191 Gif Sur Yvette, France

[3] Warsaw Univ Technol, Fac Chem, PL-00664 Warsaw, Poland

来源：

MOLECULAR CRYSTALS AND LIQUID CRYSTALS SCIENCE AND TECHNOLOGY SECTION A-MOLECULAR CRYSTALS AND LIQUID CRYSTALS | 1998年 / 322卷

关键词：

D O I：

10.1080/10587259808030194

中图分类号：

O7 [晶体学];

学科分类号：

0702 ; 070205 ; 0703 ; 080501 ;

摘要：

We report about a nematic liquid crystal device suitable for efficient coherent beam amplification. A proposed novel hybrid structure is composed of nematic liquid crystal layer sandwiched between suitable ultra thin photoconducting (Disperse Red 1 functionalized polythiophene) polymeric surface layers serving as orienting as well as space charge generating layers upon light incidence. The gain coefficient measured at incidence angle 45 degrees in 10 mu m thick liquid crystal layer in a conventional two-wave mixing experiment is one of the highest reported so far for the similar systems and amounts to g = 7. The net exponential gain coefficient is very high Gamma approximate to 2600 cm(-1) and is obtained at voltages below 1 V/mu m.

引用

页码：9 / 20

页数：12

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