Kinetic simulation of nonlinear phenomena of an ion acoustic wave in gas discharge plasma with convective scheme

Yasushi Matsunaga, Tadatsugu Hatori, Tomokazu Kato

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

Nonlinear phenomena of the ion acoustic wave in a negatively charged plasma-sheath system are observed in the simulation with a convective scheme described by a two-dimensional phase space, and are theoretically analyzed. Subharmonics of a fundamental mode are excited and show the bifurcation phenomena when the intensity of the ion source relating to the ionization is increased. A reversed electric field from the cathode to anode reveals that the ponderomotive force due to a high frequency mode pushes the ions toward the cathode. A nonlinear coupling of two modes through the ponderomotive force is a key idea to construct the model. Nonlinear dynamical model equations involving the coupling of the two modes and an interaction of the sheath with the two modes, i.e., two nonlinear effects, are proposed. The period-doubling bifurcations of the fundamental mode are examined by using the same growth rates with the flow velocity as in our previously published linear theory.

Original languageEnglish
Pages (from-to)1057-1069
Number of pages13
JournalPhysics of Plasmas
Volume8
Issue number3
DOIs
Publication statusPublished - 2001 Mar

Fingerprint

ion acoustic waves
gas discharges
kinetics
ponderomotive forces
simulation
cathodes
plasma sheaths
period doubling
sheaths
ion sources
anodes
flow velocity
ionization
electric fields
ions
interactions

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Condensed Matter Physics

Cite this

Kinetic simulation of nonlinear phenomena of an ion acoustic wave in gas discharge plasma with convective scheme. / Matsunaga, Yasushi; Hatori, Tadatsugu; Kato, Tomokazu.

In: Physics of Plasmas, Vol. 8, No. 3, 03.2001, p. 1057-1069.

Research output: Contribution to journalArticle

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