| 宽带泵浦激光的聚焦位置对SRS发生过程的影响 |
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| 引用本文： | 夏江帆,王乃彦.宽带泵浦激光的聚焦位置对SRS发生过程的影响[J].强激光与粒子束,1998,10(4):505-512. |
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| 作者姓名： | 夏江帆 王乃彦 |
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| 作者单位： | 中国原子能科学研究院, 北京275 7信箱, 102413 |
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| 基金项目： | 国家863激光技术领域资助 |
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| 摘 要： | 结合SRS实验,重点研究了聚焦位置对Raman介质中的物理过程、Stokes光的输出特性的影响,比较了SRS阈值和转换效率的实验结果与理论预期。
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| 关 键 词： | 宽带泵浦 自发散射 SRS四波混频 增益聚焦 模式阈值 |
| 收稿时间： | 1900-01-01; |
THE INFLUENCE OF THE FOCUS POSITION OF BROADBAND PUMP LASER ON SRS INITIATION PROCESS |
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| Xia Jiangfan Wang Naiyan China Institute of Atomic Energy,P. O. Box ,Beijing ,P. R. China.THE INFLUENCE OF THE FOCUS POSITION OF BROADBAND PUMP LASER ON SRS INITIATION PROCESS[J].High Power Laser and Particle Beams,1998,10(4):505-512. |
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| Authors: | Xia Jiangfan Wang Naiyan China Institute of Atomic Energy P O Box Beijing P R China |
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| Institution: | China Institute of Atomic Energy,P.O.Box 275 7,Beijing 102413,P.R.China |
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| Abstract: | This article deals with the physical process when a high intensity broadband KrF Laser beam passes through gaseous Raman medium. We discuss the parameter dependence of the threshold power and conversion efficiency of SRS. Based on the analysis of SRS initiation and calculation of stokes laser modes formation, as well as the spatial propagation and amplification, we focus on influence of focus position on physical process, especially the Stokes output characteristic. By comparison between experimental results and theoretical expectation, we clarify some ambiguous viewpoints widely existing in the literature of SRS. |
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| Keywords: | broadband pump spontaneous scattering four wave mixing SRS initiation gain focusing mode threshold |
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