Photochemical ablation of organic solids

Yaroslava G. Yingling, Barbara Jane Garrison

Research output: Contribution to journalConference article

21 Citations (Scopus)

Abstract

We have investigated by molecular dynamics simulations the ablation of material that is onset by photochemical processes. We compare this system with only photochemical processes to a system containing photochemical and photothermal processes. The simulations reveal that ablation by purely photochemical processes is accompanied by the ejection of relatively cold massive molecular clusters from the surface of the sample. The top of the plume exhibits high temperatures whereas the residual part of the sample is cold. The removal of the damaged material through big molecular cluster ejection is consistent with experimental observations of low heat damage of material.

Original languageEnglish (US)
Pages (from-to)188-194
Number of pages7
JournalNuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
Volume202
DOIs
StatePublished - Apr 1 2003
Event6th International Conference on Computer Simulation of Radiation - Dresden, Germany
Duration: Jun 23 2002Jun 27 2002

Fingerprint

organic solids
molecular clusters
Ablation
ejection
ablation
plumes
simulation
molecular dynamics
damage
heat
Molecular dynamics
Computer simulation
Temperature

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics
  • Instrumentation

Cite this

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Photochemical ablation of organic solids. / Yingling, Yaroslava G.; Garrison, Barbara Jane.

In: Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms, Vol. 202, 01.04.2003, p. 188-194.

Research output: Contribution to journalConference article

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T1 - Photochemical ablation of organic solids

AU - Yingling, Yaroslava G.

AU - Garrison, Barbara Jane

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N2 - We have investigated by molecular dynamics simulations the ablation of material that is onset by photochemical processes. We compare this system with only photochemical processes to a system containing photochemical and photothermal processes. The simulations reveal that ablation by purely photochemical processes is accompanied by the ejection of relatively cold massive molecular clusters from the surface of the sample. The top of the plume exhibits high temperatures whereas the residual part of the sample is cold. The removal of the damaged material through big molecular cluster ejection is consistent with experimental observations of low heat damage of material.

AB - We have investigated by molecular dynamics simulations the ablation of material that is onset by photochemical processes. We compare this system with only photochemical processes to a system containing photochemical and photothermal processes. The simulations reveal that ablation by purely photochemical processes is accompanied by the ejection of relatively cold massive molecular clusters from the surface of the sample. The top of the plume exhibits high temperatures whereas the residual part of the sample is cold. The removal of the damaged material through big molecular cluster ejection is consistent with experimental observations of low heat damage of material.

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