| 激光与均匀大尺度等离子体相互作用中受激拉曼散射不稳定性的研究 |
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| 引用本文： | 崔春红,张秋菊. 激光与均匀大尺度等离子体相互作用中受激拉曼散射不稳定性的研究[J]. 山东师范大学学报(自然科学版), 2014, 0(2): 65-69 |
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| 作者姓名： | 崔春红 张秋菊 |
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| 作者单位： | 山东师范大学物理与电子科学学院,济南250014 |
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| 基金项目： | 国家自然科学基金资助项目（11104168）. |
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| 摘 要： | 研究了波长为810 nm、脉宽为0.81 ps的圆偏振激光脉冲与毫米量级的一维均匀等离子体相互作用中受激拉曼散射不稳定性;利用一维粒子模拟程序分析了激光沿着靶传播过程中在不同位置的受激拉曼散射,以及激光强度和等离子体密度对受激拉曼散射不稳定性的影响;发现激光强度增强和等离子体密度的增加（1/4临界密度内）均能够促进受激拉曼散射的发展.研究结果可为点火试验的设计提供参考.
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| 关 键 词： | 受激拉曼散射 不稳定性 大尺度等离子体 |
RAMAN SCATTERING INSTABILITY IN LARGE UNIFORM LASER PLASMA |
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| Cui Chunhong,Zhang Qiuju. RAMAN SCATTERING INSTABILITY IN LARGE UNIFORM LASER PLASMA[J]. Journal of Shandong Normal University(Natural Science), 2014, 0(2): 65-69 |
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| Authors: | Cui Chunhong Zhang Qiuju |
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| Affiliation: | 1.School of Physics and Electronics, Shandong Normal University, 250014, Jinan, China;) |
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| Abstract: | We investigate the instabilities of stimulated Raman scattering by the circular polarization laser light with the 810 nm wavelength and 0.81ps duration interacting with one-dimensional inhomogeneous plasma.Using the one-dimensional particle-in-cell code,we analyze the stimulated Raman scattering about different location in target,and the effect of laser intensity and plasma density on stimulated Raman scattering.The increasing of laser strength and plasma density （within 1/4 critical density） can promote the development of stimulated Raman scattering.The results may provide the reference for the ignition design in reducing the reflectivity. |
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| Keywords: | stimulated Raman scattering instability the large scale plasma |
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