Review of structural influences on the laser damage thresholds of oxide coatings

Erich J. Hacker; Hans Lauth; Peter Weissbrodt

doi:10.1117/12.240376

27 May 1996 Review of structural influences on the laser damage thresholds of oxide coatings

Erich J. Hacker, Hans Lauth, Peter Weissbrodt

Proceedings Volume 2714, 27th Annual Boulder Damage Symposium: Laser-Induced Damage in Optical Materials: 1995; (1996) https://doi.org/10.1117/12.240376
Event: Laser-Induced Damage in Optical Materials: 1995, 1995, Boulder, CO, United States

Abstract

The laser damage thresholds of optical coatings lie, as a rule, markedly below those of the respective bulk materials. This is due to diverse specific realstructure properties with regard to composition, crystallography, microstructure and the physico-chemical structure of the interfaces. These properties depend in a highly complex and sensitive way on the substrate treatment, coating techniques and deposition conditions. With evaporated and sputtered oxide coatings as example, some correlations between structural thin film properties (e.g. crystallography, microstructure, anisotropy, chemical composition, defects) and the ultraviolet (248 nm) or near infrared (1064 nm) laser damage thresholds are discussed with concern to a further increase of the damage resistance. It is evident from data that an approach to the problem requires complex investigations of the technology-structure-properties relationships.

Citation Download Citation

Erich J. Hacker, Hans Lauth, and Peter Weissbrodt "Review of structural influences on the laser damage thresholds of oxide coatings", Proc. SPIE 2714, 27th Annual Boulder Damage Symposium: Laser-Induced Damage in Optical Materials: 1995, (27 May 1996); https://doi.org/10.1117/12.240376

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