[KSCI] Korea Science Citation Index Service

http://dx.doi.org/10.3807/KJOP.2004.15.2.109

Study on the photo-induced refractive index change of diarylethene derivative using fiber-to-planar waveguide coupler

조강민 (경북대학교 센서공학과)
윤정현 (경북대학교 센서공학과)
임선정 (서울대학교 재료공학부)
박수영 (서울대학교 재료공학부)
강신원 (경북대학교 전자전기공학부)

Publication Information

Korean Journal of Optics and Photonics / v.15, no.2, 2004 , pp. 109-113 More about this Journal

Abstract

We have manufactured and characterized the fiber-to-Planar Waveguide Coupler for analysis of the photo-induced refractive index change of DM-BTE .(l,2-bis[2,5-dimethylthio-phen-3-yl]-hexafluorocyclopentene) When irradiated with ultraviolet light, the colorless diarylethene(DM-BTE)-crystal turned red while keeping the crystal shape. The red color was bleached by irradiation with visible light(λ＞450 nm). The resonant wavelength was shifted and recovered owing to the refractive index variation of the planar waveguide because of its photo-functional properties on exposure to UV and visible light. The wavelength responses of this switch by UV exposure were measured as 0.057 nm/sec with saturation time of 60 seconds. and when illuminated by visible light, resonance wavelength variations were measured as 0.028 nm/sec, with recovery time of 140 seconds.

Keywords

side-polished fiber; photo-functional polymer; diarylethene(DM-BTE); fiber-to-planar waveguide coupler;

Citations & Related Records

Reference

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KSCI

Study on the photo-induced refractive index change of diarylethene derivative using fiber-to-planar waveguide coupler 광섬유-평면도파로 결합기를 이용한 광변색성 디아릴에텐 유도체의 광유도 굴절률 변화에 관한 연구

Study on the photo-induced refractive index change of diarylethene derivative using fiber-to-planar waveguide coupler