Laser-induced Hertzian fractures on the exit surface of silica glass deposited with metal micro-spheres

E. Feigenbaum; R. N. Raman; D. Cross; C. W. Carr; M. J. Matthews

doi:10.1117/12.2245047

6 December 2016 Laser-induced Hertzian fractures on the exit surface of silica glass deposited with metal micro-spheres

E. Feigenbaum, R. N. Raman, D. Cross, C. W. Carr, M. J. Matthews

Proceedings Volume 10014, Laser-Induced Damage in Optical Materials 2016; 1001406 (2016) https://doi.org/10.1117/12.2245047
Event: SPIE Laser Damage, 2016, Boulder, Colorado, United States

Abstract

We study the formation of laser-induced Hertzian fractures on silica output surfaces at high incident influences initiated by surface bound metal particles. Hertzian fracture initiation probability as a function of incidence influence is obtained for two particle materials. The resulting modified damage density curve shows prototypical features determined by the surface-bound particles population. The data is further used to calculate the coupling coefficient between incident energy and the ejected plasma momentum.

Citation Download Citation

E. Feigenbaum, R. N. Raman, D. Cross, C. W. Carr, and M. J. Matthews "Laser-induced Hertzian fractures on the exit surface of silica glass deposited with metal micro-spheres", Proc. SPIE 10014, Laser-Induced Damage in Optical Materials 2016, 1001406 (6 December 2016); https://doi.org/10.1117/12.2245047

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