PHOTOOPTICAL SWITCHING OF POLYMER FILM WAVE-GUIDE CONTAINING PHOTOCHROMIC DIARYLETHENES

被引:125
作者
TANIO, N
IRIE, M
机构
[1] Institute of Advanced Material Study, Kyushu University, Kasuga-shi, Fukuoka, 816
来源
JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS | 1994年 / 33卷 / 3A期
关键词
PHOTOCHROMIC COMPOUND; DIARYLETHENE; POLYMER FILM; SWITCHING DEVICE; WAVE-GUIDE; PRISM COUPLING; REFRACTIVE INDEX;
D O I
10.1143/JJAP.33.1550
中图分类号
O59 [应用物理学];
学科分类号
摘要
Fabrication of a photooptical switching device based on the photo-induced refractive index change of polymer film doped with photochromic compounds is described. 1,2-bis(2-methylbenzo[b]thiophen-3-yl) perfluorocyclopentene (BFCP) and 1,2-dicyano-1,2-bis(2,4,5-trimethyl-3-thienyl)ethene (CMTE) were used as the photochromic compounds. A transformation in the compounds from the opened-ring to closed-ring form was induced by irradiation with a He-Cd laser (325 nm) and the reverse reaction with an Ar ion laser (488 nm). The polymer films containing BFCP and CMTE showed a refractive index change, DELTAn, as large as 5 X 10(-4)/Wt% photoisomerized chromophores. Photooptical switching of a prism coupling device was demonstrated by alternate irradiation with Ar ion and He-Cd lasers, and also by irradiation with a pulsed YAG laser.
引用
收藏
页码:1550 / 1553
页数:4
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