Quasimonoenergetic electron acceleration in the self-modulated laser wakefield regime

B. Hidding, M. Geissler, G. Pretzler, K. U. Amthor, H. Schwoerer, S. Karsch, L. Veisz, K. Schmid, R. Sauerbrey

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17 Citations (Scopus)

Abstract

Details on the generation of (multiple) quasimonoenergetic electron bunches in the self-modulated laser wakefield acceleration (SMLWFA) regime are presented. This type of laser-plasma interaction can result in pronounced longitudinal laser pulse fragmentation, dependent on plasma density and laser intensity. It is shown by experiments and particle-in-cell simulations that these laser pulse fragments can be powerful enough to trigger nonlinear plasma wave breaking, injection, and acceleration of electrons to quasimonoenergetic energies. With high plasma densities, self-modulation is promoted, and the advantages of SMLWFA such as especially high accelerating fields and short electron bunches (<5 fs) can be harvested. In addition, more than one quasimonoenergetic electron bunch can be created, with a temporal spacing between each bunch of only few tens of femtoseconds, again governed by plasma density.

Original languageEnglish
Article number043105
Number of pages11
JournalPhysics of Plasmas
Volume16
Issue number4
DOIs
Publication statusPublished - 11 May 2009

Keywords

  • quasimonoenergetic electron bunches
  • laser-plasma interaction
  • high electron density
  • electron energy

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    Hidding, B., Geissler, M., Pretzler, G., Amthor, K. U., Schwoerer, H., Karsch, S., ... Sauerbrey, R. (2009). Quasimonoenergetic electron acceleration in the self-modulated laser wakefield regime. Physics of Plasmas, 16(4), [043105]. https://doi.org/10.1063/1.3109666