Relativistic Self-Induced Transparency Effect During Ultraintense Laser Interaction with Overdense Plasmas: Why It Occurs and Its Use for Ultrashort Electron Bunch Generation
V. I. Eremin, A. V. Korzhimanov, A. V. Kim
TL;DR
This paper explains the relativistic self-induced transparency effect in superintense laser-overdense plasma interactions and proposes a method for generating ultrashort high-energy electron bunches using this phenomenon.
Contribution
It provides a new analytical explanation for the transparency effect and introduces a novel method for ultrashort electron bunch generation verified through simulations.
Findings
Analytical model of relativistic transparency
Verification with PIC and kinetic simulations
Proposed method for femtosecond electron bunches
Abstract
A novel explanation of the relativistic self-induced transparency effect during superintense laser interaction with an overdense plasma is proposed. We studied it analytically and verified with direct modeling by both PIC and kinetic equation simulations. Based on this treatment, a method of ultrashort high-energy electron bunch generation with durations on a few femtosecond time scale is also proposed and studied via numerical simulation
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