Understanding the wavelength dependent laser damage response for nanobubbles in ion beam sputtered hafnia layers

Amira Guediche; Saaxewer Diop; Jae Hyuck Yoo; Gener D. Gatmaitan; Raluca Negres; Ryan Gini; Warren L. York; Tian Li; Colin Harthcock

doi:10.1117/12.3034221

18 December 2024 Understanding the wavelength dependent laser damage response for nanobubbles in ion beam sputtered hafnia layers

Amira Guediche, Saaxewer Diop, Jae Hyuck Yoo, Gener D. Gatmaitan, Raluca Negres, Ryan Gini, Warren L. York, Tian Li, Colin Harthcock

Author Affiliations +

Proceedings Volume PC13190, Laser-Induced Damage in Optical Materials 2024; PC1319004 (2024) https://doi.org/10.1117/12.3034221
Event: SPIE Laser Damage, 2024, San Ramon, CA, United States

Abstract

Hafnia, a main optical material in high-energy laser applications, faces limitations due to precursors prone to laser damage. Addressing these precursors is critical to producing laser-resistant films. Nanobubbles within hafnia layers contribute to laser damage upon UV, nanosecond-laser exposure. This study examines hafnia film deposited by ion beam sputtering with different working gases, either Argon or Xenon. The effect of nanobubble size, which varies according to the working gas used, on the film performance under nanosecond-laser irradiation was investigated. The results indicate that the different nanobubble sizes influenced by the working gas affect the laser damage mechanism.

Conference Presentation

Citation Download Citation

Amira Guediche, Saaxewer Diop, Jae Hyuck Yoo, Gener D. Gatmaitan, Raluca Negres, Ryan Gini, Warren L. York, Tian Li, and Colin Harthcock "Understanding the wavelength dependent laser damage response for nanobubbles in ion beam sputtered hafnia layers", Proc. SPIE PC13190, Laser-Induced Damage in Optical Materials 2024, PC1319004 (18 December 2024); https://doi.org/10.1117/12.3034221

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