Short-Time Electron Dynamics in Aluminum Excited by Femtosecond Extreme Ultraviolet Radiation

被引：88
|
作者：
Medvedev, N. [1 ,2 ,3 ]
Zastrau, U. [4 ,5 ]
Foerster, E. [4 ,5 ]
Gericke, D. O. [6 ]
Rethfeld, B. [1 ,2 ]
机构：
[1] Tech Univ Kaiserslautern, Fachbereich Phys, D-67663 Kaiserslautern, Germany
[2] Tech Univ Kaiserslautern, Forschungszentrum OPTIMAS, D-67663 Kaiserslautern, Germany
[3] DESY, Ctr Free Electron Laser Sci, D-22607 Hamburg, Germany
[4] Univ Jena, Inst Opt & Quantenelekt, D-07743 Jena, Germany
[5] Helmholtz Inst Jena, D-07743 Jena, Germany
[6] Univ Warwick, Dept Phys, Ctr Fus Space & Astrophys, Coventry CV4 7AL, W Midlands, England
来源：
PHYSICAL REVIEW LETTERS | 2011年 / 107卷 / 16期
基金：
英国工程与自然科学研究理事会;
关键词：
LASER; SCATTERING; COLLISIONS; OPERATION; JUPITER; WATER; CORE;
D O I：
10.1103/PhysRevLett.107.165003
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
The femtosecond dynamics of the electrons in aluminum after an intense extreme ultraviolet pulse is investigated by Monte Carlo simulations. Transient distributions of the conduction band electrons show an almost thermalized, low-energy part and a high-energy tail. Constructing emission spectra from these data, we find excellent agreement with measurements. The radiative decay mainly reflects the colder part of the distribution, whereas the highly excited electrons dominate the bremsstrahlung spectrum. For the latter, we also find good agreement between predicted and measured energy scales.
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页数：5
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