The influence of laser irradiation conditions on the bulk damage of JGS1 fused silica

Xiaona Ban; Zhixing Gao; Hongyu He; Jing Li; Zhao Wang; Baixian Tian; Fengming Hu

doi:10.1117/12.2601881

9 August 2021 The influence of laser irradiation conditions on the bulk damage of JGS1 fused silica

Xiaona Ban, Zhixing Gao, Hongyu He, Jing Li, Zhao Wang, Baixian Tian, Fengming Hu

Proceedings Volume 11912, Pacific Rim Laser Damage 2021: Optical Materials for High-Power Lasers; 1191202 (2021) https://doi.org/10.1117/12.2601881
Event: Pacific Rim Laser Damage 2021: Optical Materials for High Power Lasers, 2021, Hangzhou, China

Abstract

The fused silica is an important optical material in the large laser devices, which are often subject to laser induced damage in the laser systems. In this work we studied nanosecond laser induced damage in JGS1 fused silica at the three harmonic wavelengths of the 1064 nm, 355 nm and 248 nm. Under 1064nm/10ns, 355nm/10ns and 248nm/22.8ns laser irradiation, the bulk damage threshold is 150 J/cm², 15 J/cm² and 7 J/cm², respectively. The results showed that the weakest point of bulk damage threshold among the three tested wavelengths is 248 nm. And the damage threshold decreases sharply with the decrease of wavelength.

Citation Download Citation

Xiaona Ban, Zhixing Gao, Hongyu He, Jing Li, Zhao Wang, Baixian Tian, and Fengming Hu "The influence of laser irradiation conditions on the bulk damage of JGS1 fused silica", Proc. SPIE 11912, Pacific Rim Laser Damage 2021: Optical Materials for High-Power Lasers, 1191202 (9 August 2021); https://doi.org/10.1117/12.2601881

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