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Studies of stimulated Raman backscattering and associated nonlinear laser–plasma interactions

A. Salcedo, R.J. Focia, A.K. Ram, A. Bers2003年被引用 12Nuclear FusionIF 3出版社

Coupled theoretical and computational work is presented aimed at understanding and modelling stimulated Raman backscattering (SRBS) relevant to laser–plasma interactions in large-scale, homogeneous plasmas. With the aid of a new code for simulating and studying the nonlinear coupling in space–time of a large number of modes, and an Eulerian Vlasov–Maxwell code for studying the evolution of large amplitude electron plasma waves, we report results and their interpretations to elucidate the following five observed, nonlinear phenomena associated with SRBS: coupling of SRBS to Langmuir decay instabilities (LDIs); effect of ion-acoustic damping on SRBS; cascading of LDI; stimulated Raman scattering cascades; and stimulated electron acoustic wave scattering (SEAS).

日本語訳

結合した理論的および計算的研究を提示し、大規模で均質なプラズマにおけるレーザー・プラズマ相互作用に関連する誘導ラマン後方散乱(SRBS)の理解とモデル化を目的とする。多数のモードの時空間における非線形結合をシミュレーションし研究するための新しいコード、および大振幅電子プラズマ波の進化を研究するためのオイラー型ヴラソフ・マクスウェルコードを用いて、SRBSに関連する以下の5つの観測された非線形現象を解明するための結果とその解釈を報告する:SRBSのラングミュア崩壊不安定性(LDI)への結合;SRBSに対するイオン音波減衰の影響;LDIのカスケード化;誘導ラマン散乱カスケード;および誘導電子音波散乱(SEAS)。

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Laser plasmaLaser-plasma interactionRaman scatteringStimulated Raman scattering
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