Effects of film stress in laser-induced damage

L. O. Jensen; T. Böntgen; H. Kessler; D. Ristau

doi:10.1117/12.2500213

16 November 2018 Effects of film stress in laser-induced damage

L. O. Jensen, T. Böntgen, H. Kessler, D. Ristau

Proceedings Volume 10805, Laser-Induced Damage in Optical Materials 2018: 50th Anniversary Conference; 108050X (2018) https://doi.org/10.1117/12.2500213
Event: SPIE Laser Damage, 2018, Boulder, Colorado, United States

Abstract

Investigations of reduced laser-induced damage thresholds in dielectric coatings when tested under vacuum show that film stress is one of the contributors to this effect. Also, there are a number of different approaches to ensure wavefront integrity of surfaces that high stress films have been applied to. To not only identify optimum wavefront integrity but also optimum laser-induced damage threshold, a specific set of samples has been designed, coated and tested. This paper reports on these results, based on films produced in an ion beam sputtering process.

Citation Download Citation

L. O. Jensen, T. Böntgen, H. Kessler, and D. Ristau "Effects of film stress in laser-induced damage", Proc. SPIE 10805, Laser-Induced Damage in Optical Materials 2018: 50th Anniversary Conference, 108050X (16 November 2018); https://doi.org/10.1117/12.2500213

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