| 宽带KrF激光抽运的受激布里渊散射反射率研究 |
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| 引用本文： | 王晓慧,吕志伟,林殿阳,王超,汤秀章,龚坤,单玉生.宽带KrF激光抽运的受激布里渊散射反射率研究[J].物理学报,2006,55(3):1224-1230. |
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| 作者姓名： | 王晓慧 吕志伟 林殿阳 王超 汤秀章 龚坤 单玉生 |
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| 作者单位： | (1)哈尔滨工业大学光电子技术研究所,哈尔滨 150001; (2)哈尔滨工业大学光电子技术研究所,哈尔滨 150001;国家卫星海洋应用中心，北京 100081; (3)中国原子能科学研究院,北京 102413 |
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| 摘 要： | 实验上研究了宽带KrF激光抽运的受激布里渊散射(SBS)随抽运功率密度、介质气压和透镜焦距这三个实验参数的变化规律.在较低的抽运功率密度情况下，SBS反射率随抽运功率密度呈非线性增长；当抽运功率密度提高到一定程度，SBS反射率接近饱和；当功率密度继续增大，SBS 反射率随之下降.介质气压提高能够促进SBS的转换.透镜焦距长度的变化使SBS饱和反射率存在一峰值.理论上建立了宽带多模SBS模型，数值模拟结果与实验结果符合得很好，解释了宽带SBS反射率对实验参数的变化规律.
关键词：
宽带
KrF激光
受激布里渊散射(SBS)
反射率
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| 关 键 词： | 宽带 KrF激光 受激布里渊散射(SBS) 反射率 |
| 收稿时间： | 04 21 2005 12:00AM |
| 修稿时间： | 2005-04-212005-06-20 |
Stimulated Brillouin scattering reflection pumped by broadband KrF laser |
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| Wang Xiao-Hui,Lü Zhi-Wei,Lin Dian-Yang,Wang Chao,Tang Xiu-Zhang,Gong Kun,Shan Yu-Sheng.Stimulated Brillouin scattering reflection pumped by broadband KrF laser[J].Acta Physica Sinica,2006,55(3):1224-1230. |
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| Authors: | Wang Xiao-Hui Lü Zhi-Wei Lin Dian-Yang Wang Chao Tang Xiu-Zhang Gong Kun Shan Yu-Sheng |
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| Institution: | 1.Institute of Opto-Electronics , Harbin Institute of Technology, Harbin 150001, China ; 2. National Satellite Ocean Application Service, Beijing 100081, China ; 3. China Institute of Atomic Energy, Beijing 102413, China |
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| Abstract: | Stimulated Brillouin scattering (SBS) reflectivity as a function of pump power density, pressure of medium and focal length for broadband KrF laser pump was investigated experimentally. SBS reflectivity increases nonlinearly, approaches to saturation and decreases with the pump power density increasing. The pressure in the medium makes the SBS reflectivity to increase. SBS saturation has a peak value with the focal length from 10cm to 100cm. Broadband multimode SBS model has been built theoretically. Experimental results agree well with the model. |
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| Keywords: | broadband KrF laser stimulated Brillouin scattering (SBS) reflectivity |
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