Laser damage of optically polished KDP crystal

Kunio Yoshida; Hidetsugu Yoshida; Sadao Nakai; Yoshimasa Katori; Takayuki Okamoto

doi:10.1117/12.60123

29 July 1992 Laser damage of optically polished KDP crystal

Kunio Yoshida, Hidetsugu Yoshida, Sadao Nakai, Yoshimasa Katori, Takayuki Okamoto

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Proceedings Volume 1624, Laser-Induced Damage in Optical Materials: 1991; (1992) https://doi.org/10.1117/12.60123
Event: Laser-Induced Damage in Optical Materials: 1991, 1991, Boulder, CO, United States

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

Citation Download Citation

Kunio Yoshida, Hidetsugu Yoshida, Sadao Nakai, Yoshimasa Katori, and Takayuki Okamoto "Laser damage of optically polished KDP crystal", Proc. SPIE 1624, Laser-Induced Damage in Optical Materials: 1991, (29 July 1992); https://doi.org/10.1117/12.60123

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