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Creation of locally selective mirror surface on 40BaO–40TiO2–20B2O3 glass by XeCl pulse laser irradiation

Published online by Cambridge University Press:  03 March 2011

Hirokazu Masai ,
Shintaro Mizuno ,
Takumi Fujiwara ,
Yasuhiko Benino ,
Takayuki Komatsu  and
Hiroshi Mori
Hirokazu Masai*
Affiliation:
Department of Applied Physics, Tohoku University, Aoba-ku, Sendai 980-8579, Japan
Shintaro Mizuno
Affiliation:
Department of Applied Physics, Tohoku University, Aoba-ku, Sendai 980-8579, Japan
Takumi Fujiwara
Affiliation:
Department of Applied Physics, Tohoku University, Aoba-ku, Sendai 980-8579, Japan
Yasuhiko Benino
Affiliation:
Department of Materials Science and Technology, Nagaoka University of Technology, Nagaoka, Niigata 940-2188, Japan
Takayuki Komatsu
Affiliation:
Department of Materials Science and Technology, Nagaoka University of Technology, Nagaoka, Niigata 940-2188, Japan
Hiroshi Mori
Affiliation:
Department of Applied Physics, Tohoku University, Aoba-ku, Sendai 980-8579, Japan
*
a) Address all correspondence to this author. e-mail: masai@laser.apph.tohoku.ac.jp
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Abstract

Creation of mirror dots, localized areas of smooth surface with a shape of laser beam on a glass material, using a XeCl laser irradiation is reported. Laser irradiation of a 40BaO–40TiO2–20B2O3 sample heated to 300 °C induced a smooth and flat surface, where no scratches caused by a mechanical polishing were observed. The present finding indicates that the melting of the surface occurred by the combined effect of the heat-assistance and the increased absorption coefficient of TiO2. In the present system, the absorption coefficient in the ultraviolet region, which originates from TiO2, was found to increase with increasing temperature. The presented technique will open new possibilities in integrated optics; the surface of a small protruded or hollow area can be made smooth, which cannot be achieved by conventional mechanical polishing.

Keywords

AmorphousLaserOxide
Type
Articles
Information
Journal of Materials Research , Volume 22 , Issue 5 , May 2007 , pp. 1270 - 1274
Copyright
Copyright © Materials Research Society 2007

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References

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