6 December 2016 Laser-induced Hertzian fractures on the exit surface of silica glass deposited with metal micro-spheres
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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.
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E. Feigenbaum, R. N. Raman, D. Cross, C. W. Carr, 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); doi: 10.1117/12.2245047; https://doi.org/10.1117/12.2245047
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