A technique to study doped ablation in polymethyl methacrylate using molecular dynamics simulation

Patrick F. Conforti, Manish Prasad, Barbara J. Garrison

Research output: Contribution to journalArticlepeer-review

Abstract

A doped polymer substrate is studied using molecular dynamics simulations. Photons are preferentially absorbed as thermal energy by a spherical portion of a polymethyl methacrylate sample. Once sufficient energy is absorbed to fragment the polymer-labeled cluster and cleave the residual polymer bonds, ejection of material occurs indicating ablation. The mechanism of ejection is analogous to our previous work where a dopant cluster was represented using a cluster of carbon atoms [P.F. Conforti, M. Prasad, B.J. Garrison, Physical Chemistry Chemical Physics, 10 (2008) 6002]. This labeling procedure can serve as an approximate method to qualitatively explore the effects of different parameters without becoming consumed in the details of the simulation setup procedure.

Original languageEnglish (US)
Pages (from-to)9588-9591
Number of pages4
JournalApplied Surface Science
Volume255
Issue number24
DOIs
StatePublished - Sep 30 2009

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Condensed Matter Physics
  • Physics and Astronomy(all)
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films

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