This article is cited in 1 paper

Interaction of laser radiation with matter. Laser plasma

Mechanism of electron bunching by an ultrarelativistically intense laser pulse when crossing a nonuniform-plasma boundary

S. V. Kuznetsov

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

Abstract: Numerical simulations were used to investigate the electron bunching induced by a laser pulse in its penetration into a plasma that has a nonuniform density profile at the vacuum – plasma boundary, which reaches a plateau. A mechanism was found to exist for this plasma which fosters a denser electron grouping in the generated bunch in comparison with the plasma with a sharp boundary. This mechanism is related to the nonstationarity of the wake wave produced by the laser pulse at the beginning of the plasma density plateau.

Keywords: laser pulse, electron bunch, generation, injection.

Received: 28.02.2020
Revised: 07.05.2020

 English version: Quantum Electronics, 2020, 50:10, 929–933

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