Study of stimulated Raman and Brillouin scattering in a finite interaction region under the convective instability condition
Study of stimulated Raman and Brillouin scattering in a finite interaction region under the convective instability condition作者机构:Institute of Applied Physics and Computational MathematicsBeijing 100094China Center for Applied Physics and TechnologyPeking UniversityBeijing 100871China Graduate School of China Academy of Engineering PhysicsBeijing 100088China
出 版 物:《Chinese Science Bulletin》 (Chinese Science Bulletin)
年 卷 期:2012年第57卷第21期
页 面:2747-2751页
核心收录:
学科分类:070207[理学-光学] 07[理学] 08[工学] 0803[工学-光学工程] 0702[理学-物理学]
基 金:supported by Science and Technology Funds of CAEP(2010B0102018and2010A0102004) the National Natural Science Foundation of China(11147141,11175029,11075025,10975023,10935003)
主 题:受激拉曼散射 稳定条件 对流 受激布里渊散射 等离子体密度 线性理论 相互作用 计算结果
摘 要:We discuss stimulated Raman scattering (SRS) and stimulated Brillouin scattering (SBS) under the convective instability condition with a one-dimensional three-wave interaction (3WI) *** linear theory,we deduce the temporal growth rate,gain exponent,and reflectivity of the backward scattered wave in a finite interaction *** find that the growth rate is not only determined by the laser intensity and plasma density and temperature,but also related to the spatial *** length of the interaction region is important to the gain exponent and backscattering *** simulate the developments and evolutions of SRS and SBS based on the 3WI *** numerical results consist with the linear theory.