Kinetic simulation on nonlinear phenomenon of ion acoustic wave in gas discharge plasma with convective scheme

Yasushi Matsunaga, Tadatsugu Hatori, Tomokazu Kato

研究成果: Article

抄録

Ion oscillations in a one dimensional plasma-sheath system are simulated by the aid of the convective scheme, combining the kinetic equation with the Poisson equation. The frequency spectra of the ion current through a cathode reveal to us that two modes of ion acoustic wave are dominant; a high frequency mode and the fundamental mode. By using a linearized differential equation the appearance of the two modes is corroborated. As the nonlinear phenomena on the fundamental mode, excitation of sub-harmonics is observed if the gas pressure concerned with ionization is changed. A model equation of nonlinear oscillation including the ponderomotive force term caused by the high frequency mode is introduced, and sub-harmonics and period-doubling bifurcations are shown by using the growth rate with the flow velocity obtained in our linear theory.

本文言語English
ページ(範囲)726-727
ページ数2
ジャーナルProgress of Theoretical Physics Supplement
138
DOI
出版ステータスPublished - 2000 1 1

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

フィンガープリント 「Kinetic simulation on nonlinear phenomenon of ion acoustic wave in gas discharge plasma with convective scheme」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル