Dispersion measurements results of mirrors contamination in vacuum

Petrisor Gabriel Bleotu; Fattima Al-Abedj; Yoshihide Nakamiya; Stefan Popa; Emilia Matache; Takahisa Jitsuno; Daniel Ursescu

doi:10.1117/12.3032766

17 December 2024 Dispersion measurements results of mirrors contamination in vacuum

Petrisor Gabriel Bleotu, Fattima Al-Abedj, Yoshihide Nakamiya, Stefan Popa, Emilia Matache, Takahisa Jitsuno, Daniel Ursescu

Author Affiliations +

Proceedings Volume 13190, Laser-Induced Damage in Optical Materials 2024; 131900K (2024) https://doi.org/10.1117/12.3032766
Event: SPIE Laser Damage, 2024, San Ramon, CA, United States

Abstract

The contamination of the mirrors used in vacuum at different laser facilities is one of the factors that lead to damage to the mirrors. To mitigate this risk, we propose a non-invasive method based on broadband source interferometry to investigate the contamination quantitatively. By monitoring the phase, group delay, and group delay dispersion of the mirrors, we were able to qualify the contamination as a function of coating design, deposition method, and contamination time in the vacuum chamber.

Conference Presentation

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Petrisor Gabriel Bleotu, Fattima Al-Abedj, Yoshihide Nakamiya, Stefan Popa, Emilia Matache, Takahisa Jitsuno, and Daniel Ursescu "Dispersion measurements results of mirrors contamination in vacuum", Proc. SPIE 13190, Laser-Induced Damage in Optical Materials 2024, 131900K (17 December 2024); https://doi.org/10.1117/12.3032766

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