Ultrafast Energy Transfer in Metals in a Strongly Nonequilibrium State Induced by Subterawatt Femtosecond Laser Pulses

被引：3

作者：

Ashitkov, S. I. ^{[1
]}

Inogamov, N. A. ^{[1
,2
]}

Komarov, P. S. ^{[1
]}

Petrov, Yu. V. ^{[2
]}

Romashevskiy, S. A. ^{[1
]}

Sitnikov, D. S. ^{[1
]}

Struleva, E. V. ^{[1
]}

Khokhlov, V. A. ^{[1
,2
]}

机构：

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

[2] Russian Acad Sci, Landau Inst Theoret Phys, Chernogolovka, Russia

来源：

HIGH TEMPERATURE | 2022年 / 60卷 / 02期

基金：

俄罗斯科学基金会;

关键词：

ELECTRON; TRANSITIONS; ALUMINUM; SURFACE;

D O I：

10.1134/S0018151X22020018

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The temporal dynamics of the change in the thermally-induced induced reflection coefficient of polycrystalline gold, aluminum, and molybdenum at a wavelength of 800 nm as a result of exposure to a femtosecond laser pulse (at a wavelength of 400 nm) with an intensity of up to 0.2 TW in the in the picosecond time range is studied using pump-probe optical scheme with phase-sensitive detection. New experimental data are obtained on the change in the reflection coefficient under strongly nonequilibrium conditions when the electron subsystem is heated to temperatures of similar to 10 kK, which are relevant for the development of the experimental base for numerical simulation.

引用

页码：192 / 197

页数：6

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