Thermomechanical model of mirror laser damage at 1.06 um: I. Nodule ejection

Jean Dijon; Marc Poulingue; Jean Hue

doi:10.1117/12.344394

7 April 1999 Thermomechanical model of mirror laser damage at 1.06 μm: I. Nodule ejection

Jean Dijon, Marc Poulingue, Jean Hue

Proceedings Volume 3578, Laser-Induced Damage in Optical Materials: 1998; (1999) https://doi.org/10.1117/12.344394
Event: Laser-Induced Damage in Optical Materials: 1998, 1998, Boulder, CO, United States

Abstract

A simple tractable model based on a thermomechanical approach of nodule ejection is developed. Our main purpose is to investigate the nodule critically according to the depth of the seed inside of the coating, in order to understand why the deepest nodules located close to the substrate interface are the most critical. A summary of the experimental results concerning the behavior of irradiated nodules is achieved. Then, the model is checked thanks to experimental data. A critical location of the nodules close to the top surface of the coating is found. A supplemental ingredient is added to understand why the nodules close to the substrate interface are critical.

Citation Download Citation

Jean Dijon, Marc Poulingue, and Jean Hue "Thermomechanical model of mirror laser damage at 1.06 μm: I. Nodule ejection", Proc. SPIE 3578, Laser-Induced Damage in Optical Materials: 1998, (7 April 1999); https://doi.org/10.1117/12.344394

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