中国物理B ›› 2010, Vol. 19 ›› Issue (7): 75201-075201.doi: 10.1088/1674-1056/19/7/075201

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Scattering of light waves by electron electrostatic waves in laser produced plasmas

王宇钢1, 刘占军2, 郑春阳2, 贺贤土2, 项江3, 朱少平3, 曹莉华3   

  1. (1)Center for Applied Physics and Technology, State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, China; (2)Center for Applied Physics and Technology, State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, China;Institute of Applied Physics and Computational Mathematics, Beijing 100094, China; (3)Institute of Applied Physics and Computational Mathematics, Beijing 100094, China
  • 修回日期:2010-01-06 出版日期:2010-07-15 发布日期:2010-07-15
  • 基金资助:
    Project supported by the National High-Tech ICF Committee of China, the National Natural Science Foundation of China (Grant Nos. 10975023, 10835003, 10935003 and 10974022) and the National Basic Research Program (Grant Nos. 2007CB815101, 2007CB814802 and 2010CB832904).

Scattering of light waves by electron electrostatic waves in laser produced plasmas

Liu Zhan-Jun(刘占军)a) b)†ger, Xiang Jiang(项江)b), Zheng Chun-Yang (郑春阳)a)b), Zhu Shao-Ping(朱少平)b), Cao Li-Hua(曹莉华) b), He Xian-Tu(贺贤土)a)b), and Wang Yu-Gang(王宇钢) a)   

  1. a Center for Applied Physics and Technology, State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, China; b Institute of Applied Physics and Computational Mathematics, Beijing 100094, China
  • Revised:2010-01-06 Online:2010-07-15 Published:2010-07-15
  • Supported by:
    Project supported by the National High-Tech ICF Committee of China, the National Natural Science Foundation of China (Grant Nos. 10975023, 10835003, 10935003 and 10974022) and the National Basic Research Program (Grant Nos. 2007CB815101, 2007CB814802 and 2010CB832904).

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摘要： The propagation of light waves in an underdense plasma is studied using one-dimensional Vlasov—Maxwell numerical simulation. It is found that the light waves can be scattered by electron plasma waves as well as other heavily and weakly damping electron wave modes, corresponding to stimulated Raman and Brilluoin-like scatterings. The stimulated electron acoustic wave scattering is also observed as a high scattering level. High frequency plasma wave scattering is also observed. These electron electrostatic wave modes are due to a non-thermal electron distribution produced by the wave—particle interactions. The collision effects on stimulated electron acoustic wave and the laser intensity effects on the scattering spectra are also investigated.

Abstract: The propagation of light waves in an underdense plasma is studied using one-dimensional Vlasov—Maxwell numerical simulation. It is found that the light waves can be scattered by electron plasma waves as well as other heavily and weakly damping electron wave modes, corresponding to stimulated Raman and Brilluoin-like scatterings. The stimulated electron acoustic wave scattering is also observed as a high scattering level. High frequency plasma wave scattering is also observed. These electron electrostatic wave modes are due to a non-thermal electron distribution produced by the wave—particle interactions. The collision effects on stimulated electron acoustic wave and the laser intensity effects on the scattering spectra are also investigated.

Key words: scatterings, laser plasma, Vlasov simulation

中图分类号:  (Electrostatic waves and oscillations (e.g., ion-acoustic waves))

  • 52.35.Fp
52.50.Jm (Plasma production and heating by laser beams (laser-foil, laser-cluster, etc.)) 52.65.Ff (Fokker-Planck and Vlasov equation) 52.25.Os (Emission, absorption, and scattering of electromagnetic radiation ?)