Damage of SiO2 film under low-energy proton irradiation and laser irradiation

Zhihao Wang; Yanzhi Wang; Hongbo He; Zicai Shen; Ruiyi Chen; Yuhui Zhang; Dawei Li; Guohang Hu; Yifan Zheng; Yuchuan Shao; Anna Sytchkova; Jianda Shao

doi:10.1117/12.2602493

9 August 2021 Damage of SiO₂ film under low-energy proton irradiation and laser irradiation

Zhihao Wang, Yanzhi Wang, Hongbo He, Zicai Shen, Ruiyi Chen, Yuhui Zhang, Dawei Li, Guohang Hu, Yifan Zheng, Yuchuan Shao, Anna Sytchkova, Jianda Shao

Author Affiliations +

Proceedings Volume 11912, Pacific Rim Laser Damage 2021: Optical Materials for High-Power Lasers; 119120M (2021) https://doi.org/10.1117/12.2602493
Event: Pacific Rim Laser Damage 2021: Optical Materials for High Power Lasers, 2021, Hangzhou, China

Abstract

With the development of space lasers, research on the stability of laser films in space environments is becoming more and more important. The space laser film will be damaged by protons, gamma rays and other space radiation environments, and it will be affected by laser radiation, too. This puts forward higher requirements for space laser film elements, so it is essential to carry out space environment simulation tests on laser films. In this paper, the effect of 40keV proton on SiO₂ film was studied and then the 355nm laser damage threshold test on it was performed. It was found that the ultraviolet absorption of the film irradiated by proton increased, resulting in the decrease of its transmittance and its ability to resist laser damage.

Citation Download Citation

Zhihao Wang, Yanzhi Wang, Hongbo He, Zicai Shen, Ruiyi Chen, Yuhui Zhang, Dawei Li, Guohang Hu, Yifan Zheng, Yuchuan Shao, Anna Sytchkova, and Jianda Shao "Damage of SiO₂ film under low-energy proton irradiation and laser irradiation", Proc. SPIE 11912, Pacific Rim Laser Damage 2021: Optical Materials for High-Power Lasers, 119120M (9 August 2021); https://doi.org/10.1117/12.2602493

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