Spectroscopy of solid density plasmas generated by irradiation of thin foils by a fs laser

被引：22

作者：

Gallant, P ^{[1
]}

Jiang, Z

Chien, CY

Forget, P

Dorchies, F

Kieffer, JC

Pépin, H

Peyrusse, O

Mourou, G

Krol, A

机构：

[1] Univ Quebec, INRS Energie & Mat, Quebec City, PQ J3X 1S2, Canada

[2] CEA, Bruyeres Le Chatel, France

[3] Univ Michigan, Ctr Ultrafast Opt Sci, Ann Arbor, MI 48109 USA

[4] SUNY Hlth Sci Ctr, Syracuse, NY 13210 USA

来源：

JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER | 2000年 / 65卷 / 1-3期

基金：

加拿大自然科学与工程研究理事会;

关键词：

D O I：

10.1016/S0022-4073(99)00071-0

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We present time-resolved spectroscopy of laser-produced plasmas achieved with a 500 fs resolution. Time history of Al It-shell emission from hot solid density plasmas produced by the interaction of an intense subpicosecond laser pulse (150-400 fs, 0.53 mu m, 5 x 10(18) W/cm(2)) with a thin free-standing foil target (500-1000 Angstrom) appears to change drastically with laser pulse duration, the X-ray emission duration decreasing with the heating pulse duration. We report here what we believe to be the first observations of subpicosecond thermal X-ray emissions (Al He-alpha, 500-700 fs) in laser-produced plasmas. Such results are of interest for applications to the observation of ultrafast phenomena in matter. (C) 2000 Elsevier Science Ltd. All rights reserved.

引用

页码：243 / 252

页数：10

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