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Proceedings Paper

Thermal behavior of thin metal films irradiated by ultra-short pulse laser
Author(s): Qiulong Hao; Gang Zhao; Wenzong Qi
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Paper Abstract

The two-temperature model has been widely used to predict the electron and phonon temperature distributions in ultra-short laser processing of metals. This paper extends the use of existing two-temperature model to high electron temperatures by using full-run quantum treatments, including the electron heat capacity, electron relaxation time and electron conductivity . A dual-hyperbolic two temperature model is solved numerically using an accurate and stabile forward-difference scheme, in which one kind of artificial viscosities and adaptive time steps method are introduced. This model predicts the damage thresholds more accurately compared with published experimental results.

Paper Details

Date Published: 5 March 2007
PDF: 6 pages
Proc. SPIE 6595, Fundamental Problems of Optoelectronics and Microelectronics III, 65950K (5 March 2007); doi: 10.1117/12.726448
Show Author Affiliations
Qiulong Hao, Sichuan Univ. (China)
Gang Zhao, Sichuan Univ. (China)
Wenzong Qi, Sichuan Univ. (China)

Published in SPIE Proceedings Vol. 6595:
Fundamental Problems of Optoelectronics and Microelectronics III

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