| 线性偏振激光在相对论等离子体中的调制不稳定性 |
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| 引用本文： | 张文东,刘三秋,陈华英,路飞飞.线性偏振激光在相对论等离子体中的调制不稳定性[J].强激光与粒子束,2008,20(10). |
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| 作者姓名： | 张文东 刘三秋 陈华英 路飞飞 |
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| 作者单位： | 1. 南昌大学 物理系, 南昌 330031; 2. 南昌大学 材料学院, 南昌 330031 |
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| 基金项目： | 教育部新世纪优秀人才支持计划项目，江西省跨世纪学术和技术带头人培养计划项目 |
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| 摘 要： | 从相对论等离体中电磁波的非线性色散方程出发，利用Karpman方法获得了线性偏振波模所满足的非线性控制方程，在非线性色散方程和非线性控制方程的基础上对线性偏振激光在相对论等离体中传播的调制不稳定性进行分析，给出了调制不稳定的时间增长率与扰动态波数之间的函数关系。
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| 关 键 词： | 非线性色散方程 非线性控制方程 调制不稳定性 增长率 |
| 收稿时间： | 1900-01-01; |
Modulation instability of linearly polarized laser pulse in relativistic plasma |
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| ZHANG Wen-dong,LIU San-qiu,CHEN Hua-ying,LU Fei-fei.Modulation instability of linearly polarized laser pulse in relativistic plasma[J].High Power Laser and Particle Beams,2008,20(10). |
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| Authors: | ZHANG Wen-dong LIU San-qiu CHEN Hua-ying LU Fei-fei |
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| Institution: | 1. Department of Physics, Nanchang University, Nanchang 330031, China;2. School of Materials Science, Nanchang University, Nanchang 330031, China |
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| Abstract: | Based on the nonlinear dispersion relation of electromagnetic wave in relativistic plasma, the nonlinear controlling equation for linearly polarized mode is obtained using Karpman’s method. The modulation instability of intense laser pulse propagating through relativistic plasma is analyzed and the modulation instability growth rate as a function of perturbation wave number for laser beam propagating through relativistic plasma is given. |
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| Keywords: | Nonlinear controlling equation Modulation instability Growth rate |
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