Translator Disclaimer
Poster + Presentation
11 September 2020 Quantitative model of fatigue induced by femtosecond laser pulses in dielectric coatings
Author Affiliations +
Conference Poster
Abstract
Laser-induced damage threshold decreases when an optic is exposed to multiple laser pulses. In the femtosecond regime, the fatigue of dielectric materials is attributed to incubation of laser-induced lattice states. The goal of this study is to investigate sub-critical damage in a quantitative manner so that the lifetime of single-layer dielectric coatings could be predicted for femtosecond applications. Sub-critical damage was found to consist of localized nanogrooves (100 nm wide, 1-2 um long) oriented perpendicularly to laser polarization. Simple fatigue model was used to simulate fatigue curves which were in good agreement with experimental S-on-1 data for the catastrophic damage.
Conference Presentation
© (2020) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Linas Smalakys, Evelina Drobužaitė, Balys Momgaudis, Robertas Grigutis, and Andrius Melninkaitis "Quantitative model of fatigue induced by femtosecond laser pulses in dielectric coatings", Proc. SPIE 11514, Laser-induced Damage in Optical Materials 2020, 115141W (11 September 2020); https://doi.org/10.1117/12.2571851
PROCEEDINGS
POSTER + PRESENTATION

SHARE
Advertisement
Advertisement
Back to Top