Study on Ultra-Precise Machining of CLBO Crystal

Abstract:

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Cesium Lithium Borate (CsLiB6O10 or CLBO) is the most effective non-linear crystal which generates ultraviolet harmonics of the Nd:YAG fundamental laser wavelength. In order to enhance the damage threshold, low CLBO surface roughness, by ultra-precision machining, is needed. Because the CLBO crystal has easy hydroscopic reaction and micro scratches in machining, ultra-precise machining of the CLBO crystal is a difficult technical problem. In this paper, the new lapping slurry and polishing slurry are introduced. And the deliquescence degree of CLBO is fallen to lowest. A new working technology is also adopted. After rough polishing, the concentration of ultra-precision polishing slurry is increased properly. So does the ultra-precision polishing speed, and the wiping speed is faster than the deliquescence speed. The CLBO crystal surface roughness can achieve 1nm and keep the surface quality well.

Info:

Periodical:

Key Engineering Materials (Volumes 304-305)

Edited by:

Guangqi Cai, Xipeng Xu and Renke Kang

Pages:

398-402

DOI:

10.4028/www.scientific.net/KEM.304-305.398

Citation:

X. Lv et al., "Study on Ultra-Precise Machining of CLBO Crystal", Key Engineering Materials, Vols. 304-305, pp. 398-402, 2006

Online since:

February 2006

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Price:

$35.00

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