Study on damage of K9 glass under 248nm ultraviolet pulsed laser irradiation

Xi Wang; Xiaodong Fang

doi:10.1117/12.2180228

13 April 2015 Study on damage of K9 glass under 248nm ultraviolet pulsed laser irradiation

Xi Wang, Xiaodong Fang

Proceedings Volume 9522, Selected Papers from Conferences of the Photoelectronic Technology Committee of the Chinese Society of Astronautics 2014, Part II; 95221U (2015) https://doi.org/10.1117/12.2180228
Event: Selected Proceedings of the Photoelectronic Technology Committee Conferences held August-October 2014, 2014, China, China

Abstract

The damage of K9 glass under 248nm ultraviolet pulsed laser irradiation was studied. The laser pulse energy was kept within the range of 60mJ to 160mJ, and the repetition rate was adjusted within the range of 1Hz to 40Hz. The damage morphologies of single-pulse and multi-pulse laser irradiation were characterized by optical microscope, and the damage mechanism was discussed. The experimental results indicated that the damage of K9 glass irradiated by 248nm ultraviolet laser mainly followed the thermal-mechanical coupling mechanism and the damage threshold of K9 glass was 2.8J/cm². The intensity of damage area increased gradually with the increase of the laser pulse number. It was shown that accumulation effect of laser induced damage to K9 glass was obvious.

Citation Download Citation

Xi Wang and Xiaodong Fang "Study on damage of K9 glass under 248nm ultraviolet pulsed laser irradiation", Proc. SPIE 9522, Selected Papers from Conferences of the Photoelectronic Technology Committee of the Chinese Society of Astronautics 2014, Part II, 95221U (13 April 2015); https://doi.org/10.1117/12.2180228

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