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Spatiotemporal Evolution of Stimulated Raman Scattering in the Absolute and Convective Regimes
  • ISSN号：1009-0630
  • 期刊名称：Plasma Science and Technology
  • 时间：2012.6.6
  • 页码：721-
  • 分类：O437.3[机械工程—光学工程;理学—光学;理学—物理] P315.72[天文地球—地震学;天文地球—固体地球物理学;天文地球—地球物理学]
  • 作者机构：[1]The Graduate School of China Academy of Engineering Physics, Beijing 100088, China, [2]China University of Mining and Technology (Beijing), Beijing 100083, China, [3]Institute of Applied Physics and Computational Mathematics, Beijing 100088, China, [4]Center for Applied Physics and Technology, Peking University, Beijing 100871, China
  • 相关基金：supported by Sci. ＆ Tech.Funds of CAEP（Nos.2010A0102004 and 2010B0102018）; National Natural Science Foundation of China（Nos.11075025,10975023,10935003,10835003）
  • 相关项目：激光聚变"点火岛"问题的理论与数值模拟研究
作者： W. Feng|X.B. Li|C.Y. Zheng|
关键词： 时空演变, 受激喇曼散射, 政权, 对流, 受激拉曼散射, 空间因子, 空间因素, 等离子体波, SRS, absolute and convective instability, temporal growth rate, spatial factor, frequency mismatch
中文摘要：

A three-wave interaction (3WI) code is developed to study the stimulated Raman scattering (SRS) in both absolute and convective regimes. In the simulations, the time and spatial evolutions of a plasma wave are described by temporal growth rate and spatial factor, respectively. The spatial factors in different phases and different instability regimes are investigated. It is found that the spatial factor is caused by the finite velocity of the pump wave in the first phase and by damping in the last phase. With inclusion of the spatial factor, the temporal growth rate decreases and the threshold for SRS for a finite frequency mismatch increases. Meanwhile, the effects of wave frequency mismatch on the temporal growth rate are also discussed.

英文摘要：

A three-wave interaction （3WI） code is developed to study the stimulated Raman scattering （SRS） in both absolute and convective regimes. In the simulations, the time and spatial evolutions of a plasma wave are described by temporal growth rate and spatial factor, respectively. The spatial factors in different phases and different instability regimes are investigated. It is found that the spatial factor is caused by the finite velocity of the pump wave in the first phase and by damping in the last phase. With inclusion of the spatial factor, the temporal growth rate decreases and the threshold for SRS for a finite frequency mismatch increases. Meanwhile, the effects of wave frequency mismatch on the temporal growth rate are also discussed.

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期刊信息
  • 《等离子体科学与技术：英文版》
  • 主管单位:中国科学院 中国科协
  • 主办单位:中国科学院等离子体物理研究所 中国力学学会
  • 主编：万元熙、谢纪康
  • 地址：合肥市1126信箱
  • 邮编：230031
  • 邮箱：pst@ipp.ac.cn
  • 电话：0551-5591617 5591388
  • 国际标准刊号：ISSN：1009-0630
  • 国内统一刊号：ISSN：34-1187/TL
  • 邮发代号:
  • 获奖情况:
  • 国内外数据库收录:
  • 美国化学文摘（网络版）,荷兰文摘与引文数据库,美国工程索引,美国剑桥科学文摘,美国科学引文索引（扩展库）,英国科学文摘数据库
  • 被引量:89