Guiding of relativistic electron beams in dense matter by laser-driven magnetostatic fields

  • M. Bailly-Grandvaux
  • , J. J. Santos
  • , C. Bellei
  • , P. Forestier-Colleoni
  • , S. Fujioka
  • , L. Giuffrida
  • , J. J. Honrubia
  • , D. Batani
  • , R. Bouillaud
  • , M. Chevrot
  • , J. E. Cross
  • , R. Crowston
  • , S. Dorard
  • , J. L. Dubois
  • , M. Ehret
  • , G. Gregori
  • , S. Hulin
  • , S. Kojima
  • , E. Loyez
  • , J. R. Marquès
  • A. Morace, Ph Nicolaï, M. Roth, S. Sakata, G. Schaumann, F. Serres, J. Servel, V. T. Tikhonchuk, N. Woolsey, Z. Zhang

Research output: Contribution to journalArticlepeer-review

Abstract

Intense lasers interacting with dense targets accelerate relativistic electron beams, whichtransport part of the laser energy into the target depth. However, the overall laser-to-targetenergy coupling efficiency is impaired by the large divergence of the electron beam, intrinsicto the laser-plasma interaction. Here we demonstrate that an efficient guiding ofMeV electrons with about 30MA current in solid matter is obtained by imposing a laserdrivenlongitudinal magnetostatic field of 600 T. In the magnetized conditions the transportedenergy density and the peak background electron temperature at the 60-μm-thicktarget's rear surface rise by about a factor of five, as unfolded from benchmarked simulations.Such an improvement of energy-density flux through dense matter paves the ground foradvances in laser-driven intense sources of energetic particles and radiation, driving matter toextreme temperatures, reaching states relevant for planetary or stellar science as yet inaccessibleat the laboratory scale and achieving high-gain laser-driven thermonuclear fusion.

Original languageEnglish
Article number102
JournalNature Communications
Volume9
Issue number1
DOIs
Publication statusPublished - 1 Dec 2018
Externally publishedYes

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