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Diagnosis of optical film laser damage based on characteristics of plasma
Author(s): Junhong Su; Jinman Ge
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Paper Abstract

Whether to diagnose accurately the laser damage of optical film or not is the key to measure the laser-induced damage threshold of the optical film, which directly affect the accurate assessment. In this paper, based on the plasma theory, researches on the characteristics of the laser-induced plasma while the optical film has been damaged in detail have been done, and theoretical and experimental analyzing on this plasma shockwave has been taken with acoustic method. The laser damage diagnosis method of optical film based on the characteristics of plasma has been proposed. The results show that, this method, taken the atomic spectrum of the laser-induced plasma spectrum and the peak value of pressure of the laser-induced plasma shockwave as the criteria, can efficiently improve the test accuracy of the laser-induced damage threshold of optical film.

Paper Details

Date Published: 16 January 2019
PDF: 8 pages
Proc. SPIE 10838, 9th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Advanced Optical Manufacturing Technologies, 108381B (16 January 2019); doi: 10.1117/12.2506122
Show Author Affiliations
Junhong Su, Xi'an Technological Univ. (China)
Jinman Ge, Nanjing Univ. of Science and Technology (China)


Published in SPIE Proceedings Vol. 10838:
9th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Advanced Optical Manufacturing Technologies
Xiong Li; William T. Plummer; Bin Fan; Mingbo Pu; Yongjian Wan; Xiangang Luo, Editor(s)

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