Competition among the two-plasmon decay of backscattered light,filamentation of the electron-plasma wave and side stimulated Raman scattering

作     者：K.Q.Pan Z.C.Li L.Guo T.Gong S.W.Li D.Yang C.Y.Zheng B.H.Zhang X.T.He K.Q.Pan;Z.C.Li;L.Guo;T.Gong;S.W.Li;D.Yang;C.Y.Zheng;B.H.Zhang;X.T.He

作者机构：Laser Fusion Research CenterChina Academy of Engineering PhysicsMianyangChina Center for Applied Physics and TechnologyPeking UniversityBeijingChina Institute of Applied Physics and Computational MathematicsBeijingChina 

出 版 物：《High Power Laser Science and Engineering》 (高功率激光科学与工程（英文版）)

年 卷 期：2023年第11卷第6期

页      面：87-94页

核心收录：

学科分类：07[理学] 070204[理学-等离子体物理] 0702[理学-物理学] 

基　　金：supported by the National Natural Science Foundation of China(Nos.12205274 12275251 12035002 11975215) 

主　　题：laser plasma instability inertial confinement fusion high energy density physics particle-in-cell simulation super-hot electrons 

摘      要：Competition among the two-plasmon decay(TPD)of backscattered light of stimulated Raman scattering(SRS),filamentation of the electron-plasma wave(EPW)and forward side SRS is investigated by two-dimensional particlein-cell *** previous work[*** et al.,*** 58,096035(2018)]showed that in a plasma with the density near 1/10 of the critical density,the backscattered light would excite the TPD,which results in suppression of the backward ***,this work further shows that when the laser intensity is so high(10^(16)W/cm^(2))that the backward SRS cannot be totally suppressed,filamentation of the EPW and forward side SRS will be *** the TPD of the backscattered light only occurs in the early stage and is suppressed in the latter *** distribution functions further show that trapped-particle-modulation instability should be responsible for filamentation of the *** research can promote the understanding of hot-electron generation and SRS saturation in inertial confinement fusion experiments.