Effects of thermal energy deposition on material ejection in poly(methyl methacrylate)

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

Research output: Contribution to journalArticle

14 Scopus citations

Abstract

The effects of absorption of 7.9 and 5.0 eV photons by the polymer poly(methyl methacrylate) are studied using molecular dynamics simulations. By rapidly depositing a critical amount of thermal energy in the surface region (greater than 0.03 eV Å -3 ), a pressure wave is formed which causes spallation of the substrate. If there is only one photon absorbed per monomer unit of the polymer, the 7.9 eV photons can supply sufficient energy density to initiate ejection.

Original languageEnglish (US)
Pages (from-to)6386-6389
Number of pages4
JournalApplied Surface Science
Volume253
Issue number15
DOIs
StatePublished - May 30 2007

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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