Filamentation instability of counterstreaming laser-driven plasmas.

Academic Article


  • Filamentation due to the growth of a Weibel-type instability was observed in the interaction of a pair of counterstreaming, ablatively driven plasma flows, in a supersonic, collisionless regime relevant to astrophysical collisionless shocks. The flows were created by irradiating a pair of opposing plastic (CH) foils with 1.8 kJ, 2-ns laser pulses on the OMEGA EP Laser System. Ultrafast laser-driven proton radiography was used to image the Weibel-generated electromagnetic fields. The experimental observations are in good agreement with the analytical theory of the Weibel instability and with particle-in-cell simulations.
  • Authors

  • Fox, W
  • Fiksel, G
  • Bhattacharjee, A
  • Chang, P-Y
  • Germaschewski, Kai
  • Hu, SX
  • Nilson, PM
  • Status

    Publication Date

  • November 27, 2013
  • Has Subject Area

    Published In

    Digital Object Identifier (doi)

    Pubmed Id

  • 24329452
  • Start Page

  • 225002
  • Volume

  • 111
  • Issue

  • 22