Direct electron acceleration by chirped laser pulse in a cylindrical plasma channel

被引：0

作者：

胡永南 ^{[1
]}

成丽红 ^{[2
]}

姚征伟 ^{[1
]}

张小波 ^{[1
]}

张爱霞 ^{[1
]}

薛具奎 ^{[1
]}

机构：

[1] College of Physics and Electronics Engineering, Northwest Normal University

[2] School of Science Guizhou University of Engineering Science

来源：

Chinese Physics B | 2020年 / 29卷 / 08期

基金：

中国国家自然科学基金;

关键词：

D O I：

暂无

中图分类号：

O53 [等离子体物理学]; TN24 [激光技术、微波激射技术];

学科分类号：

070204 ; 0803 ; 080401 ; 080901 ;

摘要：

We study the dynamics of single electron in an inhomogeneous cylindrical plasma channel during the direct acceleration by linearly polarized chirped laser pulse. By adjusting the parameters of the chirped laser pulse and the plasma channel, we obtain the energy gain, trajectory, dephasing rate and unstable threshold of electron oscillation in the channel.The influences of the chirped factor and inhomogeneous plasma density distribution on the electron dynamics are discussed in depth. We find that the nonlinearly chirped laser pulse and the inhomogeneous plasma channel have strong coupled influence on the electron dynamics. The electron energy gain can be enhanced, the instability threshold of the electron oscillation can be lowered, and the acceleration length can be shortened by chirped laser, while the inhomogeneity of the plasma channel can reduce the amplitude of the chirped laser.

引用

页码：299 / 307

页数：9