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Fabrication and Characterization of Disordered Polymer Optical Fibers for Transverse Anderson Localization of Light
09:19

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Published on: July 29, 2013

Transverse plasma-wave localization in multiple dimensions.

J E Fahlen1, B J Winjum, T Grismayer

  • 1Department of Electrical Engineering, University of California, Los Angeles, California 90095, USA. jfahlen@ucla.edu

Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics
|May 24, 2011
PubMed
Summary
This summary is machine-generated.

Large-amplitude plasma waves localize in the transverse direction due to particle damping. This nonlinear effect causes wave edges to dissipate while the center remains stable.

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Area of Science:

  • Plasma physics
  • Computational physics

Background:

  • Understanding plasma wave behavior is crucial for various astrophysical and laboratory settings.
  • Nonlinear effects can significantly alter wave propagation dynamics.

Purpose of the Study:

  • To investigate the spatial localization of large-amplitude plasma waves.
  • To identify the underlying mechanisms causing wave damping in multiple dimensions.

Main Methods:

  • Utilized two- and three-dimensional particle-in-cell simulations.
  • Analyzed wave behavior for large amplitudes (kλ(D)≳0.2).

Main Results:

  • Observed transverse localization of plasma waves around their axis.
  • Identified nonlinear, local damping by transiting particles as the cause.
  • Found that wave centers maintain a quasisteady state, while edges damp away.

Conclusions:

  • Nonlinear damping by transiting particles leads to wave localization.
  • This phenomenon impacts the stability and propagation of large-amplitude plasma waves.