Simulation of the expansion of a crystal heated by an ultrashort laser pulse
Applied Surface Science(2007)
摘要
Molecular dynamics (MD) simulation of expansion of quickly heated Lennard–Jones (LJ) crystalline thin film is performed. The heating time is assumed to be much shorter than the characteristic expansion time. Such situation occurs when a femtosecond laser pulse is absorbed by a crystal. We established that plastic rarefaction wave is formed and propagates from the vacuum boundary into solid.
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关键词
Ultrashort laser ablation,Molecular dynamics,Plastic wave,Spallation
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