Journal
JOURNAL OF LASER APPLICATIONS
Volume 17, Issue 1, Pages 63-68Publisher
AIP Publishing
DOI: 10.2351/1.1848522
Keywords
ultrashort-pulse laser; temperature-dependent electron-phonon coupling; laser ablation; phase explosion
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Most of the ultrafast laser heating analysis to date has been accomplished with a constant electron-phonon coupling factor (G). Due to the significant changes in the electron and lattice temperature caused by high-power laser heating, G could be temperature dependent. In this article a phenomenological temperature-dependent G is introduced to simulate ultrafast laser heating in metals. The electron temperature and the ablation depth computed with the temperature-dependent G compare well with experimental data. (C) 2005 Laser Institute of America.
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