Animated sequences of snapshots from molecular dynamics simulations of the generation of sub-surface voids and a nanocrystalline surface layer in femtosecond laser processing of Ag targets

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Generation of sub-surface voids and nanocrystalline surface layer
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 2nd pulse: spallation and resolidification
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2nd pulse: initial stage of the spallation process
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2nd pulse: collapse of a void
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Melting and resolidification in the presence of silica overlayer

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C. Wu, M. S. Christensen, J.-M. Savolainen, P. Balling, and L. V. Zhigilei, Generation of sub-surface voids and a nanocrystalline surface layer in femtosecond laser irradiation of a single crystal Ag target, Phys. Rev. B 91, 035413, 2015.
Full Text: PDF, doi:10.1103/PhysRevB.91.035413

M. V. Shugaev, C.-Y. Shih, E. T. Karim, C. Wu, and L. V. Zhigilei, Generation of nanocrystalline surface layer in short pulse laser processing of metal targets under conditions of spatial confinement by solid or liquid overlayer, Appl. Surf. Sci. 417, 54-63, 2017.
Full Text: PDF, doi:10.1016/j.apsusc.2017.02.030

This material is based upon work supported by the National Science Foundation under Grants DMR-0907247, CMMI-1301298, and CMMI-1436775.
 Any opinions, findings, and conclusions or recommendations expressed in this material are those of the authors and do not necessarily reflect the views of the National Science Foundation.