Parametric waves excitation in relativistic laser-plasma interactions for electron acceleration

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

Shulyapov, S.A.^2,3 ; Ivanov, K.A.^2,3 ; Tsymbalov, I.N.^2,3 ; Krestovskih, D.A.^2,3 ; Savel'Ev, A.B.^2,3 ; Ksenofontov, P.A.^1 ; Brantov, A.V.^1 ; Bychenkov, V.Yu.^1

Lebedev Physical Institute, Russian Academy of Sciences, Leninsky Avenue 53, Moscow

119991, Russia^1

International Laser Center, Lomonosov Moscow State University, Leninskie Gory 1, Moscow

119991, Russia^2

Faculty of Physics, Lomonosov Moscow State University, Leninskie Gory 1, Moscow

119991, Russia^3

关键词: Changing parameter;    Electron acceleration;    Electron energies;    Experimental and numerical studies;    High-energy electron;    Hot electron generation;    Particle acceleration;    Relativistic laser plasma;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/653/1/012007/pdf
DOI  :  10.1088/1742-6596/653/1/012007

来源: IOP

【 摘 要 】

Plasma created by femtosecond laser pulse of high intensity can be used as the brilliant source of high energy electrons, ions and x- or γ-rays. In most cases, laser pulses with high contrast are used for particle acceleration. But, it has been shown, that changing parameters of pre-plasma layer on the surface of the target can significantly increase electron energies. In this work we present the results of the experimental and numerical studies of the abnormally hot electron generation mechanisms in the case of long scale pre-plasma layer subcritical density.