Damage threshold study of ion-beam-sputtered coatings for a visible high-repetition laser at LLNL

Christopher J. Stolz; John R. Taylor

doi:10.1117/12.147400

24 June 1993 Damage threshold study of ion-beam-sputtered coatings for a visible high-repetition laser at LLNL

Proceedings Volume 1848, 24th Annual Boulder Damage Symposium Proceedings -- Laser-Induced Damage in Optical Materials: 1992; (1993) https://doi.org/10.1117/12.147400
Event: Optical Materials for High Power Lasers, 1992, Boulder, CO, United States

Abstract

Ion beam sputtered (IBS) coatings offer some distinct advantages over electron beam deposited (e-beam) coatings, namely environmental stability and extremely low total losses. Initial IBS coatings had excessive stress and low laser damage thresholds. For these reasons, a study was initiated to examine potential laser damage thresholds and stress of IBS coatings. A material study was conducted of IBS coatings produced in industry, and a variety of design techniques were explored to increase laser damage thresholds. A post annealing process and backside coatings were developed to reduce the coating stress.

Citation Download Citation

Christopher J. Stolz and John R. Taylor "Damage threshold study of ion-beam-sputtered coatings for a visible high-repetition laser at LLNL", Proc. SPIE 1848, 24th Annual Boulder Damage Symposium Proceedings -- Laser-Induced Damage in Optical Materials: 1992, (24 June 1993); https://doi.org/10.1117/12.147400

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