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Parametric excitation of high-frequency surface waves in a plasma-metal waveguide structure

N A Azarenkov, M V Dolgopolov, K N Ostrikov1995年Plasma Physics and Controlled FusionIF 2.2出版社

The problem concerning the excitation of high-frequency surface waves (SW) propagating across an external magnetic field at a plasma-metal interface is considered. A homogeneous electric pump field is applied in the direction transverse with respect to the plasma-metal interface. Two high-frequency SW from different frequency ranges of existence and propagating in different directions are shown to be excited in this pump field. The instability threshold pump-field values and increments are obtained for different parameters of the considered waveguide structure. The results associated with saturation of the nonlinear instability due to self-interaction effects of the excited SW are given as well. The results are appropriate for both gaseous and semiconductor plasmas.

日本語訳

外部磁場を横切って伝播する高周波表面波(SW)の励起に関する問題を、プラズマ-金属界面において考察する。均一なポンプ電場が、プラズマ-金属界面に対して横方向に印加される。異なる周波数帯域に属し、異なる方向に伝播する2つの高周波表面波が、このポンプ電場によって励起されることが示される。考慮された導波路構造の異なるパラメータに対して、不安定性の閾値ポンプ電場値と増分が求められる。励起された表面波の自己相互作用効果による非線形不安定性の飽和に関する結果も示される。これらの結果は、気体プラズマと半導体プラズマの両方に適用可能である。

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