Thermomechanical model of mirror laser damage at 1.06μm.: Part 1:: nodule ejection.

被引:26
作者
Dijon, J [1 ]
Poulingue, M [1 ]
Hue, J [1 ]
机构
[1] CEA G, DOPT, LETI, F-38054 Grenoble 9, France
来源
LASER-INDUCED DAMAGE IN OPTICAL MATERIALS: 1998 | 1999年 / 3578卷
关键词
laser damage; nodules; mirror; thin films; thermomechanic;
D O I
10.1117/12.344394
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
A simple tractable model based on a thermomechanical approach of nodule ejection is developed. Our main purpose is to investigate the nodule criticality 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.
引用
收藏
页码:387 / 397
页数:11
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