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355-nm, nanosecond laser mirror thin film damage competition
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Paper Abstract

This competition aimed to survey state-of-the-art UV high reflectors. The requirements of the coatings are a minimum reflection of 99.5% at 45 degrees incidence angle for P-polarized light at 355-nm. The choice of coating materials, design, and deposition method were left to the participants. Laser damage testing was performed at a single testing facility using the raster scan method with a 5-ns pulse length laser system operating at 10 Hz in a single longitudinal mode. A double blind test assured sample and submitter anonymity. In addition to the laser damage resistance results, details of the deposition processes, cleaning method, coating materials and layer count are also shared.

Paper Details

Date Published: 23 November 2017
PDF: 8 pages
Proc. SPIE 10447, Laser-Induced Damage in Optical Materials 2017, 104470X (23 November 2017); doi: 10.1117/12.2279981
Show Author Affiliations
Raluca A. Negres, Lawrence Livermore National Lab. (United States)
Christopher J. Stolz, Lawrence Livermore National Lab. (United States)
Michael D. Thomas, Spica Technologies, Inc. (United States)
Mark Caputo, Spica Technologies, Inc. (United States)

Published in SPIE Proceedings Vol. 10447:
Laser-Induced Damage in Optical Materials 2017
Gregory J. Exarhos; Vitaly E. Gruzdev; Joseph A. Menapace; Detlev Ristau; MJ Soileau, Editor(s)

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