Reflection of a probe pulse and thermal emission of electrons produced by an aluminum film heated by a femtosecond laser pulse

被引：6
|
作者：
Bezhanov, S. G. [1 ,2 ]
Ionin, A. A. [1 ]
Kanavin, A. P. [1 ,2 ]
Kudryashov, S. I. [1 ,2 ]
Makarov, S. V. [1 ]
Seleznev, L. V. [1 ]
Sinitsyn, D. V. [1 ]
Uryupin, S. A. [1 ,2 ]
机构：
[1] Russian Acad Sci, Lebedev Phys Inst, Moscow 119991, Russia
[2] Natl Res Nucl Univ MEPhI, Moscow 115409, Russia
来源：
JOURNAL OF EXPERIMENTAL AND THEORETICAL PHYSICS | 2015年 / 120卷 / 06期
基金：
俄罗斯基础研究基金会;
关键词：
THERMIONIC EMISSION; GOLD TARGET; METAL; DYNAMICS; SURFACE; TEMPERATURE;
D O I：
10.1134/S1063776115050106
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
It is shown that an experimental decrease in the reflection of a probe femtosecond pulse from an aluminum film heated by a higher-power femtosecond pulse can be quantitatively described taking into account the inhomogeneous distribution of the laser pulse field in the film and the evolution of the electron and lattice temperature during absorption of the heating inhomogeneous field. Analysis of the electron temperature evolution on the heated film surface combined with modern concepts about the influence of a surface volume charge on thermal emission gave the relation between the amount of emitted electrons and experimental data on the heating of the aluminum film by the femtosecond pulse.
引用
收藏
页码：937 / 945
页数：9
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