Comparison of multipulse nanosecond LIDT of HR coated YAG and glass substrates at 1030 nm

0542037 - FZÚ 2022 RIV US eng C - Conference Paper (international conference)
Vanda, Jan - Muresan, Mihai-George - Mydlář, Martin - Lucianetti, Antonio - Brajer, Jan - Mocek, Tomáš - Škoda, V. - Uxa, Š.
Comparison of multipulse nanosecond LIDT of HR coated YAG and glass substrates at 1030 nm.
Laser-Induced Damage in Optical Materials. Bellingham: SPIE, 2019 - (Carr, C.; Gruzdev, V.; Ristau, D.), č. článku 111730S. Proceedings of SPIE, 11173. ISBN 978-1-5106-3056-7. ISSN 0277-786X.
[Annual Laser Damage Symposium /51./. Broomfield (US), 22.09.2019-25.09.2019]
R&D Projects: GA MŠMT EF15_006/0000674; GA MŠMT LO1602; GA MŠMT LM2015086; GA TA ČR TH02010579
EU Projects: European Commission(XE) 739573 - HiLASE CoE
Grant - others:OP VVV - HiLASE-CoE(XE) CZ.02.1.01/0.0/0.0/15_006/0000674
Institutional support: RVO:68378271
Keywords : coating * YAG lasers * crystals * laser damage threshold * mirrors
OECD category: Optics (including laser optics and quantum optics)
https://www.spiedigitallibrary.org/conference-proceedings-of-spie/11173/2536433/Comparison-of-multipulse-nanosecond-LIDT-of-HR-coated-YAG-and/10.1117/12.2536433.short

Fused silica and BK7,are the most common and used substrates for components manufacturing in laser technology and optics.Dielectric coating technologies for those materials are well known and established, both high-reflective and anti-reflective coatings prepared on such substrates demonstrated laser induced damage threshold (LIDT) exceeding tens J·cm-2 in nanosecond regime.However,LIDT became a major issue in further exploitation of crystalline materials as yttrium aluminum garnet (YAG) crystals,which often serves as a host in laser media and would be used in other components as well.One of the current challenge is the ability to transfer thin film coating technology used on glass to YAG in order to reach the same performance as in the case of fused silica or BK7 counterparts.HR dielectric coatings prepared on fused silica,BK7 and YAG substrates by reactive or ion-assisted e-beam deposition technique were tested on LIDT by s-on-1 method according to the ISO standard recommendations.

Permanent Link: http://hdl.handle.net/11104/0319535