OPTICAL SWITCHING AND IMAGE STORAGE BY MEANS OF AZOBENZENE LIQUID-CRYSTAL FILMS

被引：1513
作者：
IKEDA, T
TSUTSUMI, O
机构：
[1] Precursory Research for Embryonic Science and Technology, Research Development Corporation of Japan, Tokyo Institute of Technology, Midori-ku, Yokohama 226
来源：
SCIENCE | 1995年 / 268卷 / 5219期
关键词：
D O I：
10.1126/science.268.5219.1873
中图分类号：
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号：
07 ; 0710 ; 09 ;
摘要：
Liquid crystals are promising materials for optical switching and image storage because of their high resolution and sensitivity. Azobenzene liquid crystals (LCs) have been developed, in which azobenzene moieties play roles as both mesogens and photosensitive chromophores. Azobenzene LC films showed a nematic phase in trans isomers and no LC phase in cis isomers. Trans-cis photoisomerization of azobenzene with a laser pulse resulted in a nematic-to-isotropic phase transition with a rapid optical response of 200 microseconds.
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页码：1873 / 1875
页数：3
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