Trapping of plasmons in ion holes

Shukla, P. K. and Eliasson, B. (2003) Trapping of plasmons in ion holes. JETP Letters, 77 (12). pp. 647-652. ISSN 1090-6487 (https://doi.org/10.1134/1.1604413)

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Abstract

We present analytical and numerical studies of a new electron plasma wave interaction mechanism, which reveals trapping of Langmuir waves in ion holes associated with nonisothermal ion distribution functions. This Langmuir ion hole interaction is a unique kinetic phenomenon governed by two second nonlinear differential equations in which the Langmuir wave electric field and ion hole potential are coupled in a complex fashion. Numerical analyses of our nonlinearly coupled differential equations exhibit trapping of localized Langmuir wave envelops in the ion hole, which is either standing or moving with sub-or super ion thermal speed. The resulting ambipolar potential of the ion hole is essentially negative, giving rise to bipolar slow electric fields. The present investigation thus offers a new Langmuir wave contraction scenario that has not been rigorously explored in plasma physics.

  • Item type:Article
    ID code:52286
    Dates:
    Date
    Event
    1 June 2003
    Published
    Notes:From Pis’ma v Zhurnal Éksperimental’nol i Teoreticheskol Fiziki, Vol. 77, No. 12, 2003, pp. 778–783.
    Subjects:Science > Physics
    Department:Faculty of Science > Physics
    Depositing user: Pure Administrator
    Date deposited:31 Mar 2015 07:20
    Last modified:08 Apr 2024 22:10
    Related URLs:
    URI:https://strathprints.strath.ac.uk/id/eprint/52286
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