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Proceedings Paper

Growth of laser-induced damage on the exit surface of fused silica optics with a millimetric laser beam
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Paper Abstract

The growth of damage sites from micrometric to millimetric scales under high energy laser system conditions have herein been investigated. In this realm, a saturation of the surface growth followed by the rapid expansion of radial cracks has been observed. This observation contrasts with the previously reported exponential behavior1 (for pulse durations above 2 ns) and linear behavior (for pulse durations below 2 ns). The observation of the longitudinal damage structure coupled with fractal analysis has shown that these shifts in growth behavior seem to be correlated with changes in the damage morphology.

Paper Details

Date Published: 13 November 2017
PDF: 5 pages
Proc. SPIE 10447, Laser-Induced Damage in Optical Materials 2017, 1044708 (13 November 2017); doi: 10.1117/12.2281124
Show Author Affiliations
Matthieu Veinhard, Commissariat à l'Énergie Atomique (France)
Odile Bonville, Commissariat à l'Énergie Atomique (France)
Roger Courchinoux, Commissariat à l'Énergie Atomique (France)
Romain Parreault, Commissariat à l'Énergie Atomique (France)
Jean-Yves Natoli, Aix Marseille Univ., Institut Fresnel, CNRS (France)
Laurent Lamaignère, Commissariat à l'Énergie Atomique (France)

Published in SPIE Proceedings Vol. 10447:
Laser-Induced Damage in Optical Materials 2017
Gregory J. Exarhos; Vitaly E. Gruzdev; Joseph A. Menapace; Detlev Ristau; MJ Soileau, Editor(s)

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