Interaction of laser radiation with matter. Laser plasma
Interference microscopy study of the preplasma formed on an iron target surface exposed to high-power femtosecond laser pulses
D. S. Sitnikov, A. V. Ovchinnikov, S. I. Ashitkov
Joint Institute for High Temperatures, Russian Academy of Sciences, Moscow
The characteristic scale of spread of the plasma formed on the surface of a bulk iron target irradiated by a femtosecond laser pulse with an intensity of 1016 W cm-2 is measured by timeresolved interference microscopy using femtosecond pulses emitted by a Cr : forsterite laser system with an intensity contrast of 107. The chosen technique is demonstrated to be efficient in such measurements. It is shown experimentally that, as a result of laser pulse impact, the displacement of a plasma layer with a density exceeding critical does not exceed 30 nm.
femtosecond pulse, hot electrons, electron acceleration mechanisms, interference microscopy.
PDF file (844 kB)
First page: PDF file
Quantum Electronics, 2020, 50:2, 179–183
D. S. Sitnikov, A. V. Ovchinnikov, S. I. Ashitkov, “Interference microscopy study of the preplasma formed on an iron target surface exposed to high-power femtosecond laser pulses”, Kvantovaya Elektronika, 50:2 (2020), 179–183 [Quantum Electron., 50:2 (2020), 179–183]
Citing articles on Google Scholar:
Related articles on Google Scholar:
|Number of views:|