Effect of relativistic plasma on extreme-ultraviolet harmonic emission from intense laser-matter interactions

被引：19

作者：

Krushelnick, K. ^{[1
]}

Rozmus, W. ^{[2
]}

Wagner, U. ^{[3
]}

Beg, F. N. ^{[4
]}

Bochkarev, S. G. ^{[2
,5
]}

Clark, E. L. ^{[6
]}

Dangor, A. E. ^{[1
]}

Evans, R. G. ^{[1
,3
]}

Gopal, A. ^{[6
]}

Habara, H. ^{[3
]}

Mangles, S. P. D. ^{[1
]}

Norreys, P. A. ^{[3
]}

Robinson, A. P. L. ^{[1
,3
]}

Tatarakis, M. ^{[1
,6
]}

Wei, M. S. ^{[4
]}

Zepf, M. ^{[7
]}

机构：

[1] Univ London Imperial Coll Sci Technol & Med, Blackett Lab, London SW7 2AZ, England

[2] Univ Alberta, Dept Phys, Edmonton, AB T6G 2M7, Canada

[3] Rutherford Appleton Lab, Chilton OX11 0QX, Oxon, England

[4] Univ Calif San Diego, Dept Mech & Aerosp Engn, San Diego, CA 92093 USA

[5] Russian Acad Sci, PN Lebedev Phys Inst, Moscow 117901, Russia

[6] Inst Educ Technol, Khania, Greece

[7] Queens Univ Belfast, Dept Phys, Belfast BT7 1NN, Antrim, North Ireland

来源：

PHYSICAL REVIEW LETTERS | 2008年 / 100卷 / 12期

基金：

英国工程与自然科学研究理事会;

关键词：

D O I：

10.1103/PhysRevLett.100.125005

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Experiments were performed in which intense laser pulses (up to 9x10(19) W/cm(2)) were used to irradiate very thin (submicron) mass-limited aluminum foil targets. Such interactions generated high-order harmonic radiation (greater than the 25th order) which was detected at the rear of the target and which was significantly broadened, modulated, and depolarized because of passage through the dense relativistic plasma. The spectral modifications are shown to be due to the laser absorption into hot electrons and the subsequent sharply increasing relativistic electron component within the dense plasma.

引用

页数：4

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