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Strategies for improving the laser-induced damage thresholds of dichroic coatings developed for high-transmission at 527 nm and high reflection at 1054 nm
Author(s): Ella S. Field; Damon E. Kletecka
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Paper Abstract

We report on progress for increasing the laser-induced damage threshold of dichroic beam combiner coatings for high transmission at 527 nm and high reflection at 1054 nm (22.5° angle of incidence, S-polarization). The initial coating consisted of HfO2 and SiO2 layers deposited with electron beam evaporation, and the laser-induced damage threshold was 7 J/cm2 at 532 nm with 3.5 ns pulses. This study introduces different coating strategies that were utilized to increase the laser damage threshold of this coating to 12.5 J/cm2.

Paper Details

Date Published: 5 June 2018
PDF: 6 pages
Proc. SPIE 10713, Pacific-Rim Laser Damage 2018: Optical Materials for High-Power Lasers, 107130A (5 June 2018); doi: 10.1117/12.2317131
Show Author Affiliations
Ella S. Field, Sandia National Labs. (United States)
Damon E. Kletecka, Sandia National Labs. (United States)


Published in SPIE Proceedings Vol. 10713:
Pacific-Rim Laser Damage 2018: Optical Materials for High-Power Lasers
Takahisa Jitsuno; Jianda Shao; Wolfgang Rudolph, Editor(s)

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