Resonant Acceleration of Electrons in Combined Self-Consistent Quasistatic Electromagnetic Fields and Intense Laser Fields  

作　　者：陈奋策 贺贤土 盛正卯 乔宾 张宏 

机构地区：[1]Department of Physics, Zhejiang University, Hangzhou 310027 [2]Inisitute of Applied Physics and Computational Mathematics, PO Box 8009, Beijing 100088 [3]Department of Mathematic and Physics, Fujian Educational Institute, Fuzhou 350001

出　　处：《Chinese Physics Letters》2006年第11期3010-3013,共4页中国物理快报（英文版）

基　　金：Supported Partially by the National Hi-Tech Inertial Confinement Fusion （ICF） Committee of China, the National Basic Research Project of Nonlinear Science in China, the National Natural Science Foundation of China under Grant Nos 10335020 and 90303003.

摘　　要：Using the single electron model, the acceleration of electrons in combined circularly polarized intense laser fields and the spontaneous quasistatic fields （including axial and azimuthal magnetic fields, the axial and transverse electric fields） produced in intense laser plasma interaction is investigated analytically and numerically by fitting the proper parameters of the quasistatic fields based on the data from the experiment and numerical calculation. A new resonant condition is given. It is found that the resonance acceleration of electron depends not only on laser field, but also on the bounce frequency oscillating in the quasistatic magnetic field and electric field. The net energy gained by electron does not increase monotonously with axial electric field, but there are some optimal axial electric fields.Using the single electron model, the acceleration of electrons in combined circularly polarized intense laser fields and the spontaneous quasistatic fields （including axial and azimuthal magnetic fields, the axial and transverse electric fields） produced in intense laser plasma interaction is investigated analytically and numerically by fitting the proper parameters of the quasistatic fields based on the data from the experiment and numerical calculation. A new resonant condition is given. It is found that the resonance acceleration of electron depends not only on laser field, but also on the bounce frequency oscillating in the quasistatic magnetic field and electric field. The net energy gained by electron does not increase monotonously with axial electric field, but there are some optimal axial electric fields.

关 键 词：MAGNETIC-FIELDS PLASMA MODEL 

分 类 号：O57[理学—粒子物理与原子核物理]