康普顿散射对亚皮秒超高斯脉冲在等离子体中传播特性的影响

Q4 Physics and Astronomy
禹定臣 Yu Ding-chen, 郝东山 Hao Dongshan
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引用次数: 0

摘要

利用多光子非线性康普顿散射模型、非线性薛尔定谔方程、Rungekutta算法和变分法,研究了康普顿散射对亚皮秒超高斯脉冲在等离子体中传播特性的影响。给出了超高斯脉冲传播演化的修正方程,并用数值方法对其进行了计算。结果表明:与康普顿散射前相比,康普顿散射增加了脉冲宽度和非线性效应的压缩程度,减小了脉冲扩展宽度,非线性效应的增加有效地降低了色散效应。当脉宽达到最大值或最小值时,频率发生抖动,抖振不为0。超高斯脉冲的振幅随传播距离的增加而加速,脉宽和抖振的振荡演化也随之加速,频率和相位与传播距离呈线性关系,脉冲中心位置与传播距离呈准线性关系。康普顿散射对超高斯脉冲的保形传输有重要影响。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Influences of Compton scattering on the propagation properties of sub-picosecond super-Gaussian pulse in plasma
By using the model of multi-photon nonlinear Compton scattering,nonlinear Schrdinger equation,Rungekutta algorithm and variation method,the influences of Compton scattering on the propagation properties of sub-picosecond super-Gaussian pulse in plasma are studied.The revised equations of the propagation evolution of super-Gaussian pulse are given out,and the equations are computed by using numbers.The results show that the compressed degree of pulse width and nonlinear effect are increased by Compton scattering than before Compton scattering,pulse expansion width is decreased and dispersion effect is effectively decreased by the increased nonlinear effect.The frequency is quivered when the pulse width is reached maximum or minimum,the chattering is not a 0.The oscillation evolution of the amplitude of the super-Gaussian pulse is accelerated along with the increase of propagation distance,the oscillation evolutions of the chattering and pulse width are accelerated too,the linear relation quivering is appeared between the frequency and phase and propagation distance,the quasi-linear relation is appeared between the central place of pulse and propagation distance.The important influences to the conformal transmission of the super-Gaussian pulse are taken place by Compton scattering.
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来源期刊
光学技术
光学技术 Physics and Astronomy-Atomic and Molecular Physics, and Optics
CiteScore
0.60
自引率
0.00%
发文量
6699
期刊介绍: The predecessor of Optical Technology was Optical Technology, which was founded in 1975. At that time, the Fifth Ministry of Machine Building entrusted the School of Optoelectronics of Beijing Institute of Technology to publish the journal, and it was officially approved by the State Administration of Press, Publication, Radio, Film and Television for external distribution. From 1975 to 1979, the magazine was named Optical Technology, a quarterly with 4 issues per year; from 1980 to the present, the magazine is named Optical Technology, a bimonthly with 6 issues per year, published on the 20th of odd months. The publication policy is: to serve the national economic construction, implement the development of the national economy, serve production and scientific research, and implement the publication policy of "letting a hundred flowers bloom and a hundred schools of thought contend".
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