Mitigating parametric instabilities in plasmas by sunlight-like lasers

作     者：H.H.Ma X.F.Li S.M.Weng S.H.Yew S.Kawata P.Gibbon Z.M.Sheng J.Zhang 

作者机构：Key Laboratory for Laser Plasmas(MoE)School of Physics and AstronomyShanghai Jiao Tong UniversityShanghai 200240China Collaborative Innovation Center of IFSAShanghai Jiao Tong UniversityShanghai 200240China Graduate School of EngineeringUtsunomiya UniversityYohtoh 7-1-2Utsunomiya 321-8585Japan Institute for Advanced SimulationJ¨ulich Supercomputing CentreForschungszentrum J¨ulich52425 J¨ulichGermany Centre for Mathematical Plasma AstrophysicsKatholieke Universiteit Leuven3000 LeuvenBelgium SUPADepartment of PhysicsUniversity of StrathclydeGlasgow G40NGUnited Kingdom Tsung-Dao Lee InstituteShanghai Jiao Tong UniversityShanghai 200240China 

出 版 物：《Matter and Radiation at Extremes》 (极端条件下的物质与辐射（英文）)

年 卷 期：2021年第6卷第5期

页      面：54-61页

核心收录：

学科分类：0808[工学-电气工程] 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）] 08[工学] 0807[工学-动力工程及工程热物理] 080401[工学-精密仪器及机械] 0804[工学-仪器科学与技术] 0827[工学-核科学与技术] 0703[理学-化学] 0803[工学-光学工程] 0702[理学-物理学] 0801[工学-力学（可授工学、理学学位）] 

基　　金：supported by the Strategic Priority Research Program of the Chinese Academy of Sciences(Grant No.XDA25050100) the National Natural Science Foundation of China(Grant Nos.11975154,11675108,11655002,and 11775144) the Science Challenge Project(Grant No.TZ2018005) the China Scholarship Council,the China and Germany Postdoctoral Exchange Program from the Office of China Postdoctoral Council and the Helmholtz Centre(Grant No.20191016) the China Postdoctoral Science Foundation(Grant No.2018M641993) funding from the European Union Horizon 2020 Research and Innovation Programme under Grant Agreement No.633053 

主　　题：polarization scattering speckle 

摘      要：Sunlight-like lasers that have a continuous broad frequency spectrum,random phase spectrum,and random polarization are formulated *** a sunlight-like laser beam consisting of a sequence of temporal speckles,the resonant three-wave coupling that underlies parametric instabilities in laser–plasma interactions can be greatly degraded owing to the limited duration of each speckle and the frequency shift between two adjacent *** wave coupling can be further weakened by the random polarization of such *** simulations demonstrate that the intensity threshold of stimulated Raman scattering in homogeneous plasmas can be doubled by using a sunlight-like laser beam with a relative bandwidth of∼1%as compared with a monochromatic laser ***,the hot-electron generation harmful to inertial confinement fusion can be effectively controlled by using sunlight-like laser *** drivers may be realized in the next generation of broadband lasers by combining two or more broadband beams with independent phase spectra or by applying polarization smoothing to a single broadband beam.