| 1064nm红外激光大气布里渊频移量模型 |
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| 引用本文： | 马泳,梁琨,程飞,王宏远.1064nm红外激光大气布里渊频移量模型[J].光学技术,2009,35(1). |
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| 作者姓名： | 马泳 梁琨 程飞 王宏远 |
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| 作者单位： | 1. 华中科技大学,电子与信息工程系,武汉,430074,华中科技大学,武汉光电国家实验室,武汉,430074
2. 华中科技大学,电子与信息工程系,武汉,430074 |
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| 基金项目： | 国家高技术研究发展计划(863计划) |
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| 摘 要： | 1064nm激光常用于大气环境监测。以激光信号在传输介质中布里渊散射频移量模型为基础,依据相关大气数据建立1064nm激光大气中布里渊散射信号检测的大气探测模型。该模型将布里渊频移量归一为只与大气高度这一单参数相关的函数,详细地描述了0～1000km范围内大气布里渊频移量的连续分布状态。结果表明在0～1000km的海拔高度范围内,1064nm激光大气的布里渊散射频移量以非单调的形式分布在0.5～1.2GHz之间。
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| 关 键 词： | 布里渊散射 布里渊频移 大气参数 数学模型 |
Atmospheric Brillouin frequency shift model of 1064nm laser |
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| MA Yong,LIANG Kun,CHENG Fei,WANG Hong-yuan.Atmospheric Brillouin frequency shift model of 1064nm laser[J].Optical Technique,2009,35(1). |
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| Authors: | MA Yong LIANG Kun CHENG Fei WANG Hong-yuan |
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| Institution: | 1.Department of Electronics and Information Engineering;Huazhong University of Science and Technology;Wuhan 430074;China;2. Wuhan National Laboratory for Optoelectronics;China |
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| Abstract: | 1064nm laser usually is used to detect atmospheric environment.Based on Brillouin scattering frequency shift model of laser transmitting through medium and relative atmospheric data,an atmospheric detection model based on detecting Brillouin scattering signal of 1064 nm laser is established.In this model,Brillouin frequency shift is only correlative to the atmospheric altitude.The continuous distribution state of Brillouin frequency shift in the range of 0—1000km is described in detail.The result shows that atmospheric Brillouin frequency shift is distributed from 0.5—1.2 GHz at the altitude from 0—1000 km.This model presents the data agreeing well with practical data and has good continuity and generality. |
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| Keywords: | Brillouin scattering Brillouin frequency shift atmospheric parameters mathematic model |
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