| 小能量激光等离子体的受激Raman散射 |
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| 引用本文： | 蒋小华,李文洪,刘永刚,邓 武,丁永坤,郑志坚,郑 坚.小能量激光等离子体的受激Raman散射[J].物理学报,1998,47(1):35-39. |
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| 作者姓名： | 蒋小华 李文洪 刘永刚 邓 武 丁永坤 郑志坚 郑 坚 |
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| 作者单位： | (1)西南核物理与化学研究所，成都 610003; (2)中国科学技术大学近代物理系，合肥 230027 |
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| 基金项目： | 国家高技术研究发展计划资助的课题- |
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| 摘 要： | 研究了激光平面靶耦合时受激Raman散射(SRS)的时间分辨光谱-在小能量激光入射平面靶时，SRS主要受激光等离子体电子密度分布的影响-在激光靶耦合初期，等离子体电子密度呈指数分布，SRS因对流阈值较高而被抑制，耦合后期平面靶被烧穿后，等离子体电子密度呈高斯分布，SRS就在均匀密度处绝对增长起来-多种材料构成的靶以及成丝存在，加剧了等离子体电子密度平台的出现，也增加了SRS光的发射-
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| 关 键 词： | 等离子体 小能量 激光等离子体 受激拉曼散射 |
| 收稿时间： | 1997-04-29 |
STIMULATED RAMAN SCATTERING IN PLASMAS PRODUCED BY LOW-ENERGY LASER |
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| JIANG XIAO-HUA,LI WEN-HONG,LIU YONG-GANG,DENG WU,DING YONG-KUN,ZHENG ZHI-JIAN and ZHENG JIAN.STIMULATED RAMAN SCATTERING IN PLASMAS PRODUCED BY LOW-ENERGY LASER[J].Acta Physica Sinica,1998,47(1):35-39. |
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| Authors: | JIANG XIAO-HUA LI WEN-HONG LIU YONG-GANG DENG WU DING YONG-KUN ZHENG ZHI-JIAN and ZHENG JIAN |
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| Abstract: | The result of experimental studies of stimulated Raman scattering (SRS) was report in this paper- When the disk target was irradiated by low-energy laser, the plasma density scale length was short, and the SRS threshold intensity was very high, SRS only occurred in those local ranges where electron density was homogeneous- Multi-material targets and filamentation will produce more those local range, these will increase SRS light- |
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