Wakefield generation by chirped super-Gaussian laser pulse in inhomogeneous plasma

作     者：Zhengwei YAO Lihong CHENG Rongan TANG Jukui XUE 姚征伟;成丽红;唐荣安;薛具奎

作者机构：College of Physics and Electronics EngineeringNorthwest Normal UniversityLanzhou 730070People＇s Republic of China 

出 版 物：《Plasma Science and Technology》 (等离子体科学和技术（英文版）)

年 卷 期：2018年第20卷第11期

页      面：28-36页

核心收录：

学科分类：080901[工学-物理电子学] 0809[工学-电子科学与技术（可授工学、理学学位）] 07[理学] 08[工学] 080401[工学-精密仪器及机械] 0804[工学-仪器科学与技术] 0805[工学-材料科学与工程（可授工学、理学学位）] 070204[理学-等离子体物理] 0803[工学-光学工程] 0702[理学-物理学] 

基　　金：supported by National Natural Science Foundation of China (Nos. 11765017, 11764039, 11475027, 11274255 and 11305132) the Specialized Research Fund for the Doctoral Program of Higher Education of China (No. 20136203110001) the Scientific Research Project of Gansu Higher Education (No. 2016A-005) 

主　　题：laser-plasma interaction inhomogeneous plasma plasma wakefield 

摘      要：We study the effect of nonlinearly chirped super-Gaussian （SG） laser pulse on wakefield generation in an inhomogeneous plasma. The different types of nonlinearly chirped pulse are employed, and different kinds of inhomogeneous plasma density are used. The maximum wakefield amplitude as the function of nonlinearly chirped laser pulse and inhomogeneous plasma density in parameter space are obtained. Moreover, the dependence of the maximum wakefield amplitude on the SG laser pulse index is discussed. This shows that a larger wakefield can be obtained when the chirped pulse and inhomogeneous density are in the critical regions. Wakefield generation can be controlled by adjusting the chirped SG pulse and inhomogeneous plasma density parameters. That is, we provide an efficient way for the controlled generation of the wakefield.