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Title: Laser shaping of a relativistic circularly polarized pulse by laser foil interaction

Laser shaping of a relativistic circularly polarized laser pulse in ultra-intense laser thin-foil interaction is investigated by theoretical analysis and particle-in-cell simulations. It is found that the plasma foil as a nonlinear optical shutter has an obvious cut-out effect on the laser temporal and spatial profiles. Two-dimensional particle-in-cell simulations show that the high intensity part of a Gaussian laser pulse can be well extracted from the whole pulse. The transmitted pulse with longitudinal steep rise front and transverse super-Gaussian profile is thus obtained which would be beneficial for the radiation pressure acceleration regime. The Rayleigh-Taylor-like instability is observed in the simulations, which destroys the foil and results in the cut-out effect of the pulse in the rise front of a circularly polarized laser.
Authors:
; ; ; ; ; ; ; ; ;  [1] ;  [2]
  1. College of Science, National University of Defense Technology, Changsha 410073 (China)
  2. College of Computer, National University of Defense Technology, Changsha 410073 (China)
Publication Date:
OSTI Identifier:
22227965
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physics of Plasmas; Journal Volume: 20; Journal Issue: 7; Other Information: (c) 2013 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; FOILS; GAUSSIAN PROCESSES; LASER-PRODUCED PLASMA; LASERS; NONLINEAR PROBLEMS; PLASMA GUNS; PLASMA SIMULATION; RADIATION PRESSURE; RAYLEIGH-TAYLOR INSTABILITY; RELATIVISTIC PLASMA; TWO-DIMENSIONAL CALCULATIONS