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Article

Thermophysical Properties of Materials
2022. V. 60. № 2. P. 192–197
Ashitkov S.I., Inogamov N.A., Komarov P.S., Petrov Yu.V., Romashevskii S.A., Sitnikov D.S., Struleva E.V., Khokhlov V.A.
Ultrafast energy transfer in metals in a strongly nonequilibrium state induced by subterawatt femtosecond laser pulses
Annotation
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 10 kK, which are relevant for the development of the experimental base for numerical simulation.
Article reference:
Ashitkov S.I., Inogamov N.A., Komarov P.S., Petrov Yu.V., Romashevskii S.A., Sitnikov D.S., Struleva E.V., Khokhlov V.A. Ultrafast energy transfer in metals in a strongly nonequilibrium state induced by subterawatt femtosecond laser pulses, High Temp., 2022. V. 60. № 2. P. 192