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Titolo:
PHOTOOPTICAL SWITCHING OF POLYMER FILM WAVE-GUIDE CONTAINING PHOTOCHROMIC DIARYLETHENES
Autore:
TANIO N; IRIE M;
Indirizzi:
KYUSHU UNIV,INST ADV MAT STUDY,KASUGA KOEN 6-1 KASUGA FUKUOKA 816 JAPAN
Titolo Testata:
JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS
fascicolo: 3A, volume: 33, anno: 1994,
pagine: 1550 - 1553
SICI:
0021-4922(1994)33:3A<1550:PSOPFW>2.0.ZU;2-0
Fonte:
ISI
Lingua:
ENG
Soggetto:
WAVE-GUIDES; THIN-FILMS; DEVICES;
Keywords:
PHOTOCHROMIC COMPOUND; DIARYLETHENE; POLYMER FILM; SWITCHING DEVICE; WAVE-GUIDE; PRISM COUPLING; REFRACTIVE INDEX;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
10
Recensione:
Indirizzi per estratti:
Citazione:
N. Tanio e M. Irie, "PHOTOOPTICAL SWITCHING OF POLYMER FILM WAVE-GUIDE CONTAINING PHOTOCHROMIC DIARYLETHENES", JPN J A P 1, 33(3A), 1994, pp. 1550-1553

Abstract

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 2-dicyano-1,2-bis(2,4,5-trimethyl-3-thienyl)ethene (CMTE) were used as the photochromic compounds. A transformationin the compounds from the opened-ring to closed-ring form was inducedby 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.

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Documento generato il 18/09/20 alle ore 17:11:29