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Proceedings Paper

Laser-induced damage threshold prediction of dielectric enhanced mirrors at 1064 nm
Author(s): Jue Wang
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Paper Abstract

HfO2 and SiO2 multilayers were used to enhance spectral reflectance, laser damage resistance, and environmental durability of aluminum alloy-based reflective optics. Multiband spectral reflectance was realized, ranging from ultraviolet to middle-wave infrared. Laser-induced damage threshold tests were performed at 1064 nm. Post laser damage morphology analysis was conducted, indicating defect-initiated and absorption-initiated damage mechanisms. The defect-initiated damage was associated with seeds residing at the substrate-coating interface. The absorption-initiated damage was separated from the defect-initiated damage by using an aluminum overcoat on the Al-alloy surfaces. Laser-induced damage thresholds associated with the two damage processes were predicted.

Paper Details

Date Published: 22 May 2015
PDF: 10 pages
Proc. SPIE 9453, Window and Dome Technologies and Materials XIV, 94530S (22 May 2015); doi: 10.1117/12.2190662
Show Author Affiliations
Jue Wang, Corning Specialty Materials, Inc. (United States)

Published in SPIE Proceedings Vol. 9453:
Window and Dome Technologies and Materials XIV
Brian J. Zelinski; Randal W. Tustison, Editor(s)

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