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

Matthieu Veinhard; Odile Bonville; Roger Courchinoux; Romain Parreault; Jean-Yves Natoli; Laurent Lamaignère

doi:10.1117/12.2281124

13 November 2017 Growth of laser-induced damage on the exit surface of fused silica optics with a millimetric laser beam

Matthieu Veinhard, Odile Bonville, Roger Courchinoux, Romain Parreault, Jean-Yves Natoli, Laurent Lamaignère

Author Affiliations +

Proceedings Volume 10447, Laser-Induced Damage in Optical Materials 2017; 1044708 (2017) https://doi.org/10.1117/12.2281124
Event: SPIE Laser Damage, 2017, Boulder, Colorado, United States

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.

Citation Download Citation

Matthieu Veinhard, Odile Bonville, Roger Courchinoux, Romain Parreault, Jean-Yves Natoli, and Laurent Lamaignère "Growth of laser-induced damage on the exit surface of fused silica optics with a millimetric laser beam", Proc. SPIE 10447, Laser-Induced Damage in Optical Materials 2017, 1044708 (13 November 2017); https://doi.org/10.1117/12.2281124

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