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Laser wake field acceleration: the highly non-linear broken- wave regime

MPG-Autoren
http://pubman.mpdl.mpg.de/cone/persons/resource/persons60774

Pukhov,  A.
Theory, Max Planck Institute of Quantum Optics, Max Planck Society;

http://pubman.mpdl.mpg.de/cone/persons/resource/persons60703

Meyer-ter-Vehn,  J.
Laboratory for Attosecond Physics, Max Planck Institute of Quantum Optics, Max Planck Society;
Laser Plasma Physics, Max Planck Institute of Quantum Optics, Max Planck Society;

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Zitation

Pukhov, A., & Meyer-ter-Vehn, J. (2002). Laser wake field acceleration: the highly non-linear broken- wave regime. Applied Physics B-Lasers and Optics, 74(4-5), 355-361. Retrieved from http://link.springer.de/link/service/journals/00340/bibs/2074004/20740355.htm.


Zitierlink: http://hdl.handle.net/11858/00-001M-0000-000F-C22D-9
Zusammenfassung
We use three-dimensional particle-in-cell simulations to study laser wake field acceleration (LWFA) at highly relativistic laser intensities. We observe ultra-short electron bunches emerging from laser wake fields driven above the wave-breaking threshold by few-cycle laser pulses shorter than the plasma wavelength. We find a new regime in which the laser wake takes the shape of a solitary plasma cavity. It traps background electrons continuously and accelerates them. We show that 12-J, 33-fs laser pulses may produce bunches of 3 x 1010 electrons with energy sharply peaked around 300 MeV. These electrons emerge as low-emittance beams from plasma layers just 700-µm thick. We also address a regime intermediate between direct laser acceleration and LWFA, when the laser-pulse duration is comparable with the plasma period.