3D PIC modeling of laser acceleration of electrons from two-dimensional inhomogeneous plasma corona

30th International Conference on Interaction of Intense Energy Fluxes with Matter

Pugachev, L.P.^1,2 ; Levashov, P.R.^1,2 ; Andreev, N.E.^1,2

Joint Institute for High Temperatures, Russian Academy of Sciences, Izhorskaya 13, Moscow

125412, Russia^1

Moscow Institute of Physics and Technology, Institutskiy Pereulok 9, Dolgoprudny, Moscow Region

141700, Russia^2

关键词: Accelerated electrons;    Collimated beams;    Electron trapping;    Inhomogeneous plasma;    Laser acceleration of electrons;    Metal target;    Particle-in-cell model;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/653/1/012005/pdf
DOI  :  10.1088/1742-6596/653/1/012005

来源: IOP

【 摘 要 】

This paper presents the results of three-dimensional (3D3V) particle-in-cell modeling of the interaction of a femtosecond laser pulse with a two-dimensional inhomogeneous plasma corona of subcritical density. It was shown that in the presence of sufficiently steep temporal pulse edge the excitation of plasma waves, electron trapping and generation of collimated beams of accelerated electrons with energy of about 0.2-0.5 MeV may occur. The simulation results are compared with experiments on the generation of collimated beams of accelerated electrons from metal targets irradiated by intense femtosecond laser radiation.