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线性偏振激光在相对论等离子体中的调制不稳定性
Modulation instability of linearly polarized laser pulse in relativistic plasma
【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。
【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.
【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;
【Key words】 Nonlinear dispersion relation; Nonlinear controlling equation; Modulation instability; Growth rate;
【Key words】 Nonlinear dispersion relation; Nonlinear controlling equation; Modulation instability; Growth rate;
【基金】 教育部新世纪优秀人才支持计划项目(NCET-05-0575);江西省跨世纪学术和技术带头人培养计划项目(040010)
- 【文献出处】 强激光与粒子束 ,High Power Laser and Particle Beams , 编辑部邮箱 ,2008年10期
- 【分类号】O534
- 【被引频次】3
- 【下载频次】96