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Photoreduction of Ag+ in aluminoborate glasses induced by irradiation of a femtosecond laser

Published online by Cambridge University Press:  01 March 2005

Bin Hua ,
Jianrong Qiu ,
Yasuhiko Shimotsuma ,
Koji Fujita  and
Kazuyuki Hirao
Bin Hua*
Affiliation:
Department of Material Chemistry, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto 615-8510, Japan
Jianrong Qiu
Affiliation:
Photon Craft Project, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences and Japan Science and Technology Agency, Kyoto 619-0237, Japan
Yasuhiko Shimotsuma
Affiliation:
Department of Material Chemistry, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto 615-8510, Japan
Koji Fujita
Affiliation:
Department of Material Chemistry, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto 615-8510, Japan
Kazuyuki Hirao
Affiliation:
Department of Material Chemistry, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto 615-8510, Japan
*
a)Address all correspondence to this author. e-mail: [email protected]
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Abstract

We report on photoreduction of Ag+ in aluminoborate glasses induced by irradiation of a femtosecond laser. Novel fluorescence was observed in the femtosecond laser irradiated glass when excited by a 365 nm ultraviolet lamp. Optical absorption, emission, and electron spin resonance spectra of the glass samples demonstrated that after the laser irradiation, portions of silver ions near the focused part of the laser beam inside the glass were reduced to silver atoms, which resulted in the formation of the characteristic fluorescence. The observed phenomenon may have promising applications in the fabrication of functional optical devices.

Keywords

GlassLaser-induced reactionLuminescence
Type
Articles
Information
Journal of Materials Research , Volume 20 , Issue 3 , March 2005 , pp. 644 - 648
Copyright
Copyright © Materials Research Society 2005

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References

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