Laser induced damage in optical glasses using nanosecond pulses at 1030 nm

0498170 - ÚFP 2019 US eng C - Konferenční příspěvek (zahraniční konf.)
Horodyská, Petra - Muresan, M. - Čech, P. - Bílek, V. - Rostohar, Danijela - Lucianetti, Antonio - Mocek, Tomáš
Laser induced damage in optical glasses using nanosecond pulses at 1030 nm.
Laser-Induced Damage in Optical Materials. Bellingham: SPIE - International Society For Optics and Photonics, 2018 - (Exarhos, G.), č. článku 108052A. ISBN 978-151062193-0. ISSN 0277-786X.
[SPIE Laser Damage 2018. Boulder (US), 23.09.2018-26.09.2018]
Grant ostatní: GA AV ČR StrategieAV21/17
Program: StrategieAV
Institucionální podpora: RVO:61389021 ; RVO:68378271
Klíčová slova: laser-induced damage treshold * optical glasses * index of refraction
Obor OECD: Optics (including laser optics and quantum optics); Optics (including laser optics and quantum optics) (FZU-D)
https://www.spiedigitallibrary.org/conference-proceedings-of-spie/10805/2500204/Laser-induced-damage-in-optical-glasses-using-nanosecond-pulses-at/10.1117/12.2500204.short?SSO=1&tab=ArticleLink

The “Bivoj” 10 J, 10 ns, 10 Hz, Yb:YAG (1030 nm) diode-pumped solid state laser (DPSSL) at the HiLASE Centre was used to investigate the laser-induced damage of optical glasses with different refractive index (BK7, SF8, FS, LIBA2000). The samples were polished using a combination of methods and cleaned in ultrasonic bath or with ion beams. Sample surface was characterized using white-light interferometry (WLI) and laser confocal microscopy (LCM). For the laser-induced damage threshold (LIDT), an S-on-1 procedure was selected, the testing taking place in accordance with the ISO 21254 standard. Due to the high energy per pulse of the “Bivoj” system we were capable of using beams with more than 500 μm diameter (using a long focusing mirror) and thus, including different surface defect in the LIDT measurement. The damage of the glasses was usually observed on the rear side (ballistic damage) due to constructive interference, however we manage to see on few samples front damage also. Values above 50 J/cm2 were common for all tested samples.
Trvalý link: http://hdl.handle.net/11104/0290569