Molecular dynamics simulation of ultrafast laser ablation of fused silica

نویسندگان

  • C Cheng
  • A Q Wu
  • X Xu
چکیده

Ultrafast laser ablation of fused silica is studied using molecular dynamics simulations. Ionization and generation of free electrons, absorption of the laser energy by free electrons and energy coupling between free electrons and ions are considered. The BKS potential is used to describe molecular interactions and is modified to include the effect of free electrons. Temperature, density, and material removal are computed, and the thermal and non-thermal mechanisms of ultrafast laser ablation of fused silica are discussed. PACS: 02.70.Ns; 42.62.-b; 52.25.Jm; 79.20.Ds; 42.70.Ce.

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تاریخ انتشار 2007