ELECTRON THERMALIZATION IN GOLD

被引：514

作者：

FANN, WS ^{[1
]}

STORZ, R ^{[1
]}

TOM, HWK ^{[1
]}

BOKOR, J ^{[1
]}

机构：

[1] AT&T BELL LABS,MURRAY HILL,NJ 07974

来源：

PHYSICAL REVIEW B | 1992年 / 46卷 / 20期

关键词：

D O I：

10.1103/PhysRevB.46.13592

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We report the direct observation of the thermalization of electrons in gold following 180 fs optical pulse excitation. The evolution of the electron energy distribution from the nascent (as photoexcited) to a hot Fermi-Dirac distribution was measured by time-resolved photoemission spectroscopy. Depending on the excitation density, thermalization times as long as almost-equal-to 1 ps were observed. A model incorporating both electron-electron and electron-phonon scattering, and using Fermi-liquid theory to properly account for screening is found to reproduce the main features of the experiment.

引用

收藏

页码：13592 / 13595

页数：4

相关论文

共 21 条

[1] THE ANOMALOUS THERMAL-RADIATION FROM METALS PRODUCED BY ULTRASHORT LASER-PULSES .1. [J].

AGRANAT, MB ;

ANISIMOV, SI ;

MAKSHANTSEV, BI .

APPLIED PHYSICS B-PHOTOPHYSICS AND LASER CHEMISTRY, 1988, 47 (03) :209-221

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

ALLEN, PB .

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

[3] FEMTOSECOND ELECTRONIC HEAT-TRANSPORT DYNAMICS IN THIN GOLD-FILMS [J].

BRORSON, SD ;

FUJIMOTO, JG ;

IPPEN, EP .

PHYSICAL REVIEW LETTERS, 1987, 59 (17) :1962-1965

[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]

EASLEY GL, 1986, PHYS REV B, V33, P2144

[6] OBSERVATION OF NON-EQUILIBRIUM ELECTRON HEATING IN COPPER [J].

EESLEY, GL .

PHYSICAL REVIEW LETTERS, 1983, 51 (23) :2140-2143

[7] TIME-RESOLVED OBSERVATION OF ELECTRON-PHONON RELAXATION IN COPPER [J].

ELSAYEDALI, HE ;

NORRIS, TB ;

PESSOT, MA ;

MOUROU, GA .

PHYSICAL REVIEW LETTERS, 1987, 58 (12) :1212-1215

[8]

ELSAYEDALI HE, 1990, ULTRAFAST PHENOMENA, V7

[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]

GROENEVELD R, 1992, THESIS U AMSTERDAM