Open AccessGrowth behavior of laser-induced damage on fused silica optics under UV, ns laser irradiation
Author(s) -
Raluca A. Negres,
Mary A. Norton,
David A. Cross,
C. W. Carr
Publication year - 2010
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.18.019966
Subject(s) - optics , laser , irradiation , materials science , pulse duration , pulse (music) , range (aeronautics) , growth rate , physics , composite material , detector , nuclear physics , geometry , mathematics
The growth behavior of laser-induced damage sites is affected by a large number of laser parameters as well as site morphology. Here we investigate the effects of pulse duration on the growth rate of damage sites located on the exit surface of fused silica optics. Results demonstrate a significant dependence of the growth parameters on laser pulse duration at 351 nm from 1 ns to 15 ns, including the observation of a dominant exponential versus linear, multiple-shot growth behavior for long and short pulses, respectively. These salient behaviors are tied to the damage morphology and suggest a shift in the fundamental growth mechanisms for pulses in the 1-5 ns range.