The role of electron-phonon coupling in ultrafast laser heating

被引：146

作者：

Chen, JK ^{[1
]}

Latham, WP ^{[1
]}

Beraun, JE ^{[1
]}

机构：

[1] USAF, Res Lab, Directed Energy Directorate, Laser Effects Res Branch, Kirtland AFB, NM 87117 USA

来源：

JOURNAL OF LASER APPLICATIONS | 2005年 / 17卷 / 01期

关键词：

ultrashort-pulse laser; temperature-dependent electron-phonon coupling; laser ablation; phase explosion;

D O I：

10.2351/1.1848522

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

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.

引用

页码：63 / 68

页数：6

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