DIRECT OBSERVATION OF MULTIPLE-PHOTON ABSORPTION BY FREE-ELECTRONS IN A WIDE BAND-GAP INSULATOR UNDER STRONG LASER IRRADIATION

被引：29

作者：

DAGUZAN, P ^{[1
]}

GUIZARD, S ^{[1
]}

KRASTEV, K ^{[1
]}

MARTIN, P ^{[1
]}

PETITE, G ^{[1
]}

DOSSANTOS, A ^{[1
]}

ANTONETTI, A ^{[1
]}

机构：

[1] ECOLE NATL SUPER TECH AVANCEES,OPT APPL LAB,F-91120 PALAISEAU,FRANCE

来源：

PHYSICAL REVIEW LETTERS | 1994年 / 73卷 / 17期

关键词：

D O I：

10.1103/PhysRevLett.73.2352

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We measure the kinetic energy of photoelectrons emitted from an cr-quartz surface irradiated by short (100 fs) and intense laser pulses. In the high intensity regime (above 100 GW/cm(2)), we observe a high-energy tail in the photoemission spectra at 620 and 560 nm. This effect disappears for the doubled frequencies. These observations give direct evidence of free-electron multiple photon absorption in the conduction band, in keeping with recent Monte Carlo simulation results.

引用

页码：2352 / 2355

页数：4

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