Ultrafast Laser Material Damage Simulation-A New Look at an Old Problem.

ABSTRACT: The chirped pulse amplification technique has enabled the generation of pulses of a few femtosecond duration with peak powers multi-Tera and Peta-Watt in the near infrared. Its implementation to realize even shorter pulse duration, higher energy, and higher repetition rate laser systems relies on overcoming the limitations imposed by laser damage of critical components. In particular, the laser damage of coatings in the amplifiers and in post-compression optics have become a bottleneck. The robustness of optical coatings is typically evaluated numerically through steady-state simulations of electric field enhancement in multilayer stacks. However, this approach cannot capture crucial characteristics of femtosecond laser induced damage (LID), as it only considers the geometry of the multila

SUBMITTER: Zhang S 

PROVIDER: S-EPMC9031137 | biostudies-literature | 2022 Apr

REPOSITORIES: biostudies-literature