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Large area ion beam sputtered dielectric ultrafast mirrors for petawatt laser beamlines
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SYSNO ASEP 0557025 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Large area ion beam sputtered dielectric ultrafast mirrors for petawatt laser beamlines Author(s) Willemsen, T. (DE)
Chaulagain, Uddhab P. (FZU-D) ORCID
Havlíčková, Irena (FZU-D) ORCID
Borneis, Stefan (FZU-D)
Ebert, W. (DE)
Ehlers, H. (DE)
Gauch, M. (DE)
Groß, T. (DE)
Kramer, Daniel (FZU-D) RID
Laštovička, Tomáš (FZU-D) RID, ORCID
Nejdl, Jaroslav (FZU-D) RID, ORCID
Rus, Bedřich (FZU-D) ORCID
Schrader, K. (DE)
Tolenis, Tomas (FZU-D) ORCID
Vaněk, František (FZU-D) ORCID
Velpula, Praveen K. (FZU-D)
Weber, Stefan A. (FZU-D) RID, ORCIDNumber of authors 17 Source Title Optics Express. - : Optical Society of America - ISSN 1094-4087
Roč. 30, č. 4 (2022), s. 6129-6141Number of pages 13 s. Language eng - English Country US - United States Keywords ultrafast mirrors ; coating ; ion sputtering ; lasers Subject RIV BL - Plasma and Gas Discharge Physics OECD category Fluids and plasma physics (including surface physics) R&D Projects EF16_019/0000789 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) EF15_003/0000449 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) Method of publishing Open access Institutional support FZU-D - RVO:68378271 UT WOS 000754931700116 EID SCOPUS 85124463452 DOI https://doi.org/10.1364/OE.452249 Annotation The latest advances in petawatt laser technology within the ELI Beamlines project have stimulated the development of large surface area dielectrically coated mirrors meeting all demanding requirements for guiding the compressed 30 J, 25 fs HAPLS laser beam at 10 Hz repetition rate and a center wavelength of 810 nm entirely in vacuum. We describe the production and evaluation of Ta2O5/HfO2/SiO2 ion beam sputtered coated (440 × 290 × 75) mm3 beam transport mirrors. No crazing was observed after thirty vacuum-air cycles. A laser induced damage threshold of 0.76 J/cm2 (fluence on mirror surface) was achieved and maintained at high shot rates Workplace Institute of Physics Contact Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579 Year of Publishing 2023 Electronic address https://doi.org/10.1364/OE.452249
Number of the records: 1