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Proceedings Paper

Laser-matter coupling mechanisms governing particulate-induced damage on optical surfaces
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Paper Abstract

A comprehensive study of laser-induced damage associated with particulate damage on optical surfaces is presented. Contaminant-driven damage on silica windows and multilayer dielectrics is observed to range from shallow pitting to more classical fracture-type damage, depending on particle-substrate material combination, as well as laser pulse characteristics. Ejection dynamics is studied in terms of plasma emission spectroscopy and pump-probe shadowgraphy. Our data is used to assess the momentum coupling between incident energy and the ejected plasma, which dominates the laser-particle-substrate interaction. Beam propagation analysis is also presented to characterize the impact of contaminant-driven surface pitting on optical performance.

Paper Details

Date Published: 6 December 2016
PDF: 8 pages
Proc. SPIE 10014, Laser-Induced Damage in Optical Materials 2016, 1001402 (6 December 2016); doi: 10.1117/12.2244981
Show Author Affiliations
M. J. Matthews, Lawrence Livermore National Lab. (United States)
E. Feigenbaum, Lawrence Livermore National Lab. (United States)
S. G. Demos, Univ. of Rochester (United States)
R. N. Raman, Lawrence Livermore National Lab. (United States)
S. R. Qiu, Lawrence Livermore National Lab. (United States)
N. Shen, Lawrence Livermore National Lab. (United States)
C. Harris, Florida A&M Univ. (United States)
R. A. Negres, Lawrence Livermore National Lab. (United States)
M. Norton, Lawrence Livermore National Lab. (United States)
D. Cross, Lawrence Livermore National Lab. (United States)
A. M. Rubenchik, Lawrence Livermore National Lab. (United States)


Published in SPIE Proceedings Vol. 10014:
Laser-Induced Damage in Optical Materials 2016
Greg J. Exarhos; Vitaly E. Gruzdev; Joseph A. Menapace; Detlev Ristau; MJ Soileau, Editor(s)

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