6 December 2016 Laser-matter coupling mechanisms governing particulate-induced damage on optical surfaces
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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.
© (2016) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
M. J. Matthews, M. J. Matthews, E. Feigenbaum, E. Feigenbaum, S. G. Demos, S. G. Demos, R. N. Raman, R. N. Raman, S. R. Qiu, S. R. Qiu, N. Shen, N. Shen, C. Harris, C. Harris, R. A. Negres, R. A. Negres, M. Norton, M. Norton, D. Cross, D. Cross, A. M. Rubenchik, A. M. Rubenchik, } "Laser-matter coupling mechanisms governing particulate-induced damage on optical surfaces", Proc. SPIE 10014, Laser-Induced Damage in Optical Materials 2016, 1001402 (6 December 2016); doi: 10.1117/12.2244981; https://doi.org/10.1117/12.2244981


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