Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5364703 | Applied Surface Science | 2007 | 4 Pages |
Abstract
The effects of absorption of 7.9 and 5.0Â 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 0.03Â eVÂ Ã â3), 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 7.9Â eV photons can supply sufficient energy density to initiate ejection.
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Authors
Patrick F. Conforti, Manish Prasad, Barbara J. Garrison,