Theoretical investigation of laser pulse width dependence in a thermal confinement regime

Y. G. Yingling, F. F. Conforti, Barbara Jane Garrison

Research output: Contribution to journalArticle

13 Scopus citations

Abstract

Previous molecular dynamics (MD) simulations of ultraviolet (UV) laser ablation demonstrate the distinct dependence of material ejection on laser fluence and laser pulse duration. In this paper, we examine the pulse width dependence when the laser pulse widths are appropriate for the thermal confinement regime. We perform MD simulations of laser ablation with a laser pulse duration of 1 ns and compare with a pulse width of 150 ps as in previous simulations. The simulations confirm that the pulse width in thermal confinement regime does not dramatically influence the molecular ejection mechanism. The simulations reveal differentiations, however, in plume composition and the ablation threshold value.

Original languageEnglish (US)
Pages (from-to)757-759
Number of pages3
JournalApplied Physics A: Materials Science and Processing
Volume79
Issue number4-6
DOIs
StatePublished - Jan 1 2004

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Materials Science(all)

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