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Femtosecond laser induced phenomena in glasses and photonic device applications

Published online by Cambridge University Press:  01 February 2011

Kazuyuki Hirao ,
Yasuhiko Shimotsuma ,
Jianrong Qiu  and
Kiyotaka Miura
Kazuyuki Hirao
Affiliation:
Photon Craft Project, JST Keihanna Plaza, Seika-cho, Kyoto 619–0237, JAPAN
Yasuhiko Shimotsuma
Affiliation:
Graduate School of Engineering, Kyoto University Nishikyo-ku, Kyoto 615–8510, JAPAN
Jianrong Qiu
Affiliation:
Photon Craft Project, JST Keihanna Plaza, Seika-cho, Kyoto 619–0237, JAPAN
Kiyotaka Miura
Affiliation:
Photon Craft Project, JST Keihanna Plaza, Seika-cho, Kyoto 619–0237, JAPAN
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Abstract

Femtosecond laser is a perfect laser source for materials processing when high accuracy and small structure size are required. Due to the ultra short interaction time and the high peak power, the process is generally characterized by the absence of heat diffusion and, consequently molten layers. Various induced structures have been observed inside glasses after the femtosecond laser irradiation. Here, we report the refractive index change, space-selective valence state manipulation of active ions, nano-grating and precipitation control of nanoparticles by a femtosecond laser in glasses. The mechanisms of the observed phenomena were also discussed.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 850: Symposium MM – Ultrafast Lasers for Materials Science , 2004 , MM2.1
Copyright
Copyright © Materials Research Society 2005

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References

REFERENCES

1. Hirao, K., Mitsuyu, T., Si, J. and Qiu, J., “Active Glass for Photonic Devices”. (Springer, 2000)Google Scholar
2. Nano Tech Weekly, No. 1133 (2003) pp.6–21 http://www.weeklynano.com Google Scholar
3. Nanotechnology Glass Project, NEDO (2003) http://www.nedo.go.jp/./english/index.html Google Scholar