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Proceedings Paper

Laser damage of optically polished KDP crystal
Author(s): Kunio Yoshida; Hidetsugu Yoshida; Sadao Nakai; Yoshimasa Katori; Takayuki Okamoto
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Paper Abstract

Optical polishing method of large diameter KDP crystals was developed. The surface finishing of KDP crystals was conducted using specially prepared lapping plate and sluny of diamond powder in oil. The optical flatness and the surface roughness of optically polished KDP crystal (2O9mm'x16mmt) were about X/6 and 7- 10 Arms, respectively. The surface damage threshold of about 10 J/cm2 at 1064nm with a pulsewidth of ins was obtained. Key words : laser damage, KDP crystal, optical flatness, surface roughness

Paper Details

Date Published: 29 July 1992
PDF: 4 pages
Proc. SPIE 1624, Laser-Induced Damage in Optical Materials: 1991, (29 July 1992); doi: 10.1117/12.60123
Show Author Affiliations
Kunio Yoshida, Osaka Univ. (Japan)
Hidetsugu Yoshida, Osaka Univ. (Japan)
Sadao Nakai, Osaka Univ. (Japan)
Yoshimasa Katori, Canon Inc. (Japan)
Takayuki Okamoto, Okamoto Optics Co. (Japan)

Published in SPIE Proceedings Vol. 1624:
Laser-Induced Damage in Optical Materials: 1991
Harold E. Bennett; Lloyd L. Chase; Arthur H. Guenther; Brian Emerson Newnam; M. J. Soileau, Editor(s)

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