Observation and modeling of high resolution spectral features of the inner-shell X-ray emission produced by 10-10 contrast femtosecond-pulse laser irradiation of argon clusters

被引：19

作者：

Colgan, J. ^{[1
]}

Abdallah, J., Jr. ^{[1
]}

Faenov, A. Ya. ^{[2
]}

Pikuz, T. A. ^{[2
]}

Skobelev, I. Yu. ^{[2
]}

Fukuda, Y. ^{[3
]}

Hayashi, Y. ^{[3
]}

Pirozhkov, A. ^{[3
]}

Kawase, K. ^{[3
]}

Shimomura, T. ^{[3
]}

Kiriyama, H. ^{[3
]}

Kato, Y. ^{[4
]}

Bulanov, S. V. ^{[3
]}

Kando, M. ^{[3
]}

机构：

[1] Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA

[2] Russian Acad Sci, Joint Inst High Temp, Moscow 125412, Russia

[3] Japan Atom Energy Agcy, Quantum Beam Sci Directorate, Kizu, Kyoto 6190215, Japan

[4] Grad Sch Creat New Photon Ind, Shizuoka 4311202, Japan

来源：

HIGH ENERGY DENSITY PHYSICS | 2011年 / 7卷 / 02期

关键词：

Laser; Cluster; Atomic model; GENERATION;

D O I：

10.1016/j.hedp.2011.01.004

中图分类号：

O35 [流体力学]; O53 [等离子体物理学];

学科分类号：

070204 ; 080103 ; 080704 ;

摘要：

A study is made of the ultra-short laser pulse irradiation of Ar cluster targets. Experiments have been performed with large cluster sizes and using very high laser contrasts, which have allowed clear and unambiguous observation of exotic inner-shell transitions in near-neutral Ar ions. The interaction of the main laser pulse with the unperturbed target is a necessary requirement for observing these lines. Our measurements are supported by kinetics calculations in which a very detailed atomic model is used. The calculations predict all of the spectral features found experimentally, and support the notion that the X-ray emission arises from many ion stages of the Ar plasma, from near-neutral through He-like ions, and from a range of plasma temperatures and densities. Published by Elsevier B.V.

引用

页码：77 / 83

页数：7

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