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Proceedings Paper

Influence of glass surface layers on laser-induced damage threshold
Author(s): Zhengtian Gu; Peihui Liang; Weiqing Zhang
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Paper Abstract

The existence of glass surface layers has a great influence upon the optical properties of the thin films coated on glass substrate, particularly upon laser-induced damage threshold. A new and simple method is proposed to analyze the glass surface layers based on p-polarized light reflectance. Experimentally, the glasses with different cleaning treatments have been analyzed. The results show that the glass with acid erosion has smaller extinction coefficient, and the cleanliness and the laser damage threshold increase accordingly. Furthermore, we measure the laser-induced damage thresholds of SiO2 antireflective films coated on several glass substrates above-mentioned. It is indicated that the laser-induced damage threshold under the acid and alkaline cleaning treatment increase by about 80% over the water cleaning treatment.

Paper Details

Date Published: 9 April 2002
PDF: 4 pages
Proc. SPIE 4679, Laser-Induced Damage in Optical Materials: 2001, (9 April 2002); doi: 10.1117/12.461704
Show Author Affiliations
Zhengtian Gu, Univ. of Shanghai for Science and Technology (China)
Peihui Liang, Shanghai Institute of Optics and Fine Mechanics (China)
Weiqing Zhang, Shanghai Institute of Optics and Fine Mechanics (China)

Published in SPIE Proceedings Vol. 4679:
Laser-Induced Damage in Optical Materials: 2001
Gregory J. Exarhos; Arthur H. Guenther; Keith L. Lewis; M. J. Soileau; Christopher J. Stolz, Editor(s)

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