Energy balance of a laser ablation plume expanding in a background gas

Salvatore Amoruso, Jørgen Schou, James G. Lunney

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Abstract

The energy balance of a laser ablation plume in an ambient gas for nanosecond pulses has been investigated on the basis of the model of Predtechensky and Mayorov (PM), which provides a relatively simple and clear description of the essential hydrodynamics. This approach also leads to an insightful description in dimensionless units of how the initial kinetic energy of the plume is dissipated into kinetic and thermal energy of the background gas. Eventually when the plume has stopped, the initial kinetic energy of the plume is converted into thermal energy of the plume and background gas.
Original languageEnglish
JournalApplied Physics A: Materials Science & Processing
Volume101
Issue number1
Pages (from-to)209-214
ISSN0947-8396
DOIs
Publication statusPublished - 2010

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