Journal
PHYSICS OF PLASMAS
Volume 16, Issue 4, Pages -Publisher
AIP Publishing
DOI: 10.1063/1.3109666
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Funding
- DFG-Projects Transregio [TR18]
- Graduiertenkolleg [GRK1203]
- Engineering and Physical Sciences Research Council [EP/D06337X/1] Funding Source: researchfish
- EPSRC [EP/D06337X/1] Funding Source: UKRI
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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. (C) 2009 American Institute of Physics. [DOI: 10.1063/1.3109666]
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