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ALEXEI ZUBAREV1,* , MARINA CUZMINSCHI2,3, ANA-MARIA IORDACHE4
- National Institute for Laser, Plasma and Radiation Physics, Magurele, Ilfov, Romania
- University of Bucharest, Faculty of Physics, Magurele, Ilfov, Romania
- "Horia Hulubei” National Institute for Physics and Nuclear Engineering, 30 Reactorului, Magurele, Ilfov, Romania
- National Institute of Research and Development for Optoelectronics – INOE 2000, Magurele, Ilfov, Romania
Recent experiments confirm the generation of long-living stable current filaments during plasma-laser interaction. In this paper, we theoretically deduce and numerically study the time of plasma-laser interaction required for filaments generation. We assume that plasma filaments appear due to non-uniform growth of Weibel instability at vacuum - overdense plasma interface. We deduce the minimal pulse duration for which filaments appear as function of laser intensity. The results obtained in our study are in agreement with previous experiments and numerical simulations. Finally, we notice that generation of plasma filaments is hard to observe at experiments at CETAL, but will influence experiments performed at ELI..
Plasma-laser interaction, Filamentation, Weibel instability, High-intensity laser, Time-scale.
Submitted at: Sept. 10, 2020
Accepted at: Oct. 7, 2021
ALEXEI ZUBAREV, MARINA CUZMINSCHI, ANA-MARIA IORDACHE, Origins of plasma filamentation in high intensity laser fields and specific time-scale estimation, Journal of Optoelectronics and Advanced Materials Vol. 23, Iss. 9-10, pp. 450-456 (2021)
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