The effects of incident light wavelength difference on the collective stimulated Brillouin scattering in plasmas

作     者：Qiang Wang Zhichao Li Zhanjun Liu Tao Gong Wenshuai Zhang Tao Xu Bin Li Ping Li Xin Li Chunyang Zheng Lihua Cao Xincheng Liu Kaiqiang Pan Hang Zhao Yonggang Liu Bo Deng Lifei Hou Yingjie Li Xiangming Liu Yulong Li Xiaoshi Peng Zanyang Guan Qiangqiang Wang Xingsen Che Sanwei Li Qiang Yin Wei Zhang Liqiong Xia Peng Wang Xiaohua Jiang Liang Guo Qi Li Minqing He Liang Hao Hongbo Cai Wudi Zheng Shiyang Zou Dong Yang Feng Wang Jiamin Yang Baohan Zhang Yongkun Ding Xiantu He Qiang Wang;Zhichao Li;Zhanjun Liu;Tao Gong;Wenshuai Zhang;Tao Xu;Bin Li;Ping Li;Xin Li;Chunyang Zheng;Lihua Cao;Xincheng Liu;Kaiqiang Pan;Hang Zhao;Yonggang Liu;Bo Deng;Lifei Hou;Yingjie Li;Xiangming Liu;Yulong Li;Xiaoshi Peng;Zanyang Guan;Qiangqiang Wang;Xingsen Che;Sanwei Li;Qiang Yin;Wei Zhang;Liqiong Xia;Peng Wang;Xiaohua Jiang;Liang Guo;Qi Li;Minqing He;Liang Hao;Hongbo Cai;Wudi Zheng;Shiyang Zou;Dong Yang;Feng Wang;Jiamin Yang;Baohan Zhang;Yongkun Ding;Xiantu He

作者机构：Institute of Applied Physics and Computational MathematicsBeijing 100094China Laser Fusion Research CenterChina Academy of Engineering PhysicsMianyangSichuan 621900China HEDPSCenter for Applied Physics and Technologyand College of EngineeringPeking UniversityBeijing 100871China 

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

年 卷 期：2023年第8卷第5期

页      面：42-49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）] 08[工学] 080401[工学-精密仪器及机械] 0804[工学-仪器科学与技术] 0803[工学-光学工程] 0702[理学-物理学] 

基　　金：supported by the Natural Science Foundation of China(Grant Nos.11975059 12005021 and 11875241) 

主　　题：scattering tuning collective 

摘      要：The first laser–plasma interaction experiment using lasers of eight beams grouped into one octad has been conducted on the Shenguang Octopus *** each beam intensity is below its individual threshold for stimulated Brillouin backscattering(SBS),collective behaviors are excited to enhance the octad *** particular,when two-color/cone lasers with wavelength separation 0.3 nm are used,the backward SBS reflectivities show novel behavior in which beams of longer wavelength achieve higher SBS *** property of SBS can be attributed to the rotation of the wave vectors of common ion acoustic waves due to the competition of detunings between geometrical angle and wavelength *** mechanism is confirmed using massively parallel supercomputer simulations with the three-dimensional laser–plasma interaction code LAP3D.