| 双频激光在等离子体中的共振自聚焦 |
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| 引用本文： | 徐铁峰,徐至展.双频激光在等离子体中的共振自聚焦[J].光学学报,1987(1). |
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| 作者姓名： | 徐铁峰 徐至展 |
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| 作者单位： | 中国科学院上海光学精密机械研究所
(徐铁峰)，中国科学院上海光学精密机械研究所(徐至展) |
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| 摘 要： | 本文从理论上详细地研究了双频激光在等离子体中的共振自聚焦。本章从流体方程出发,导出了双频激光驱动下等离子体的非线性介电常数,从而清楚地展示了等离子体波有质动力的影响。接着,具体地处理了等离子体纵向静电场,进而反映出共振自聚焦的具体特征。最后还讨论了共振自聚焦对拍频波加速器中粒子加速过程的影响。
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| 关 键 词： | 双频激光 共振自聚焦 |
Resonant self-focusing of two-frequency laser beams in plasmas |
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| XU TIEFONG AND XU ZHIZHAN.Resonant self-focusing of two-frequency laser beams in plasmas[J].Acta Optica Sinica,1987(1). |
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| Authors: | XU TIEFONG AND XU ZHIZHAN |
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| Abstract: | In this paper, we have studied theoretically the resonant Self-focusing of two-frequency laser beams in plasmas. From the plasma fluid equations, we have derived the expression of the nonlinear dieletric contants of plasmas driven by two-frequency laser beams and showed the effect of the ponderomotive force of the plasma waves. After giving the approximate solution of longitudinal electrostatic field, the characters of resonant Self-focusing are showed. Finally, the influence of resonant Self-focusing on particle acceleration in beat wave accelerator also be discussed. |
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| Keywords: | Two-frequency laser resonant self-focusing |
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