0618925 - FZÚ 2026 RIV US eng J - Článek v odborném periodiku
De Vido, M. - Divoký, Martin - Pilař, Jan - Ertel, K. - Mason, P.D.
Laser-induced damage studies in the nanosecond regime on large-aperture anti-reflection coated ceramic Yb:YAG.
Optics Express. Roč. 33, č. 4 (2025), s. 7886-7900. ISSN 1094-4087
Grant CEP: GA MŠMT EF15_006/0000674
GRANT EU: European Commission(XE) 739573 - HiLASE CoE
Institucionální podpora: RVO:68378271
Klíčová slova: laser * Yb:YAG * anti-reflection * nanosecond
Obor OECD: Optics (including laser optics and quantum optics)
Impakt faktor: 3.2, rok: 2023 ; AIS: 0.723, rok: 2023
Způsob publikování: Open access
DOI: https://doi.org/10.1364/OE.539745

We report on laser-induced damage behaviour in the nanosecond regime of anti-reflection coated, large aperture, ceramic Yb:YAG. Experiments were carried out to identify suitable coatings for use in large-aperture DiPOLE cryogenic laser amplifiers and involved the testing of 9 coating types from 7 different coating suppliers. Comparison between ex-situ S-on-1 and raster scan test results confirmed that, in the case of large aperture optics, the raster scan protocol provides a more accurate estimate of failure levels compared to the S-on-1 protocol. Significant variability in performance under raster scan testing was observed for different coating types, with some coatings failing under irradiation at 5 J/cm2 fluence while others surviving irradiation at 15 J/cm2. Comparison between raster scan results and operational experience in DiPOLE amplifiers indicates that raster-scan testing results can be used as a good indicator for suitability in operational use.
Trvalý link: https://hdl.handle.net/11104/0365721