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

共 36 条

[1] THEORY OF THERMAL RELAXATION OF ELECTRONS IN METALS [J].

ALLEN, PB .

PHYSICAL REVIEW LETTERS, 1987, 59 (13) :1460-1463

[2]

Anisimov S. I., 1974, SOV PHYS JETP, V39, P375, DOI DOI 10.1016/J.JMATPROTEC.2009.05.031

[3] On the theory of ultrashort laser pulse interaction with a metal [J].

Anisimov, SI ;

Rethfeld, B .

NONRESONANT LASER-MATTER INTERACTION (NLMI-9), 1997, 3093 :192-203

[4] FEMTOSECOND ROOM-TEMPERATURE MEASUREMENT OF THE ELECTRON-PHONON COUPLING CONSTANT-LAMBDA IN METALLIC SUPERCONDUCTORS [J].

BRORSON, SD ;

KAZEROONIAN, A ;

MOODERA, JS ;

FACE, DW ;

CHENG, TK ;

IPPEN, EP ;

DRESSELHAUS, MS ;

DRESSELHAUS, G .

PHYSICAL REVIEW LETTERS, 1990, 64 (18) :2172-2175

[5]

Chen JK, 2003, NUMER HEAT TR A-APPL, V44, P705, DOI [10.1080/716100520, 10.1080/10407780390229710]

[6] Modelling of ultrashort laser ablation of gold films in vacuum [J].

Chen, JK ;

Beraun, JE .

JOURNAL OF OPTICS A-PURE AND APPLIED OPTICS, 2003, 5 (03) :168-173

[7] Modeling of femtosecond laser-induced non-equilibrium deformation in metal films [J].

Chen, JK ;

Beraun, JE ;

Grimes, LE ;

Tzou, DY .

INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES, 2002, 39 (12) :3199-3216

[8] Numerical study of ultrashort laser pulse interactions with metal films [J].

Chen, JK ;

Beraun, JE .

NUMERICAL HEAT TRANSFER PART A-APPLICATIONS, 2001, 40 (01) :1-20

[9] DIRECT MEASUREMENT OF NONEQUILIBRIUM ELECTRON-ENERGY DISTRIBUTIONS IN SUBPICOSECOND LASER-HEATED GOLD-FILMS [J].

FANN, WS ;

STORZ, R ;

TOM, HWK ;

BOKOR, J .

PHYSICAL REVIEW LETTERS, 1992, 68 (18) :2834-2837

[10] Ablation characteristics of Au, Ag, and Cu metals using a femtosecond Ti:sapphire laser [J].

Furusawa, K ;

Takahashi, K ;

Kumagai, H ;

Midorikawa, K ;

Obara, M .

APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING, 1999, 69 (Suppl 1) :S359-S366

← 1 2 3 4 →