Laser injection of ultrashort electron pulses into wakefield plasma waves

D. Umstadter, J. K. Kim, E. Dodd

Research output: Contribution to journalArticlepeer-review

383 Scopus citations


A novel laser-plasma-based source of relativistic electrons is described. It involves a combination of orthogonally directed laser beams, which are focused in a plasma. One beam excites a wakefield electron plasma wave. Another locally alters the trajectory of some of the electrons in such a way that they can be accelerated and trapped by the wave. With currently available table-top terawatt lasers, a single ultrashort-duration electron bunch can be accelerated to multi-MeV energies in a fraction of a millimeter, with femtosecond synchronization between the light pulse, the electron bunch, and the plasma wave. Both analytical and numerical-simulation results are presented.

Original languageEnglish (US)
Pages (from-to)2073-2076
Number of pages4
JournalPhysical Review Letters
Issue number12
StatePublished - 1996
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy(all)


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