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Physics of Plasmas / Volume 8 / Issue 11 / ARTICLES / Lasers, Particle Beams, Accelerators, Radiation Generation

Phys. Plasmas 8, 4995 (2001); http://dx.doi.org/10.1063/1.1408625 (11 pages)

Simulations of Cerenkov wake radiation sources

N. Spence1, T. Katsouleas1, P. Muggli1, W. B. Mori2, and R. Hemker2

1University of Southern California, Department of Electrical Engineering–Electrophysics, Los Angeles, California 90089-0484
2University of California, Los Angeles, Department of Electrical Engineering, Los Angeles, California 90024

(Received 23 March 2001; accepted 10 August 2001)

The Cerenkov wakes stimulated by various drivers (an intense laser pulse, a train of laser pulses or beats and a relativistic particle bunch) propagating transverse to a dc magnetic field in a plasma are analyzed. In each case, the wake generated couples to the electromagnetic radiation of approximate frequency ωp at the plasma-vacuum boundary. The radiation amplitude is ωc/ωp times the amplitude of the wake excited in the plasma (for a sharp boundary). Two- and three-dimensional particle-in-cell simulations are used to verify the scaling laws. For the parameters of current plasma wake field accelerator experiments the results predict that generation of high-power (GW) coherent microwave to terahertz radiation is possible. © 2001 American Institute of Physics.

© 2001 American Institute of Physics

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KEYWORDS and PACS

Keywords

Cherenkov radiation, plasma light propagation, plasma-beam interactions, plasma simulation, wakefield accelerators

PACS

  • 52.25.Os

    Emission, absorption, and scattering of electromagnetic radiation

  • 52.40.Mj

    Particle beam interactions in plasmas

  • 52.65.Rr

    Particle-in-cell method

  • 29.20.-c

    Accelerators

  • 41.60.Bq

    Cherenkov radiation

  • 52.38.Dx

    Laser light absorption in plasmas (collisional, parametric, etc.)

  • 41.75.Jv

    Laser-driven acceleration

ARTICLE DATA

Digital Object Identifier
http://dx.doi.org/10.1063/1.1408625

PUBLICATION DATA

ISSN

1070-664X (print)  
1089-7674 (online)

Publisher

$abstract.society.value is a Member of CrossRef American Institute of Physics

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