| 聚焦脉冲激光大气传输热晕效应的数值分析 |
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| 引用本文： | 冯晓星,范承玉,王英俭,乔春红.聚焦脉冲激光大气传输热晕效应的数值分析[J].推进技术,2007,28(5):574-577. |
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| 作者姓名： | 冯晓星 范承玉 王英俭 乔春红 |
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| 作者单位： | 中国科学院,安徽光学精密机械研究所,大气光学中心,安徽,合肥,230031 |
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| 基金项目： | 国家重点基础研究发展计划(973计划) |
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| 摘 要： | 利用激光大气传输四维程序对序列脉冲激光大气传输热晕效应进行了数值计算和分析。对于均匀大气路径上聚焦传输序列脉冲激光进行数值仿真计算得到,风场渡越时间内的脉冲数Np在2~6之间有利于传输;然后对实际大气模式下序列脉冲激光进行了数值计算,得到的平均脉冲数-NP可以在一定条件下对序列脉冲激光进行定量表征的结论。
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| 关 键 词： | 激光大气传输 序列脉冲 风场渡越时间 数值计算 |
| 文章编号： | 1001-4055（2007）05-0574-04 |
| 收稿时间： | 2007-04-25 |
| 修稿时间： | 2007-06-10 |
Numerical analysis of thermal blooming effects for focusing multi-pluse laser propagation in atmosphere |
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| FENG Xiao-xing,FAN Cheng-yu,WANG Ying-jian and QIAO Chun-hong.Numerical analysis of thermal blooming effects for focusing multi-pluse laser propagation in atmosphere[J].Journal of Propulsion Technology,2007,28(5):574-577. |
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| Authors: | FENG Xiao-xing FAN Cheng-yu WANG Ying-jian and QIAO Chun-hong |
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| Institution: | Center for Atmospheric Optics, Anhui, Inst. of Optics and Fine Mechanics Academia Sinica, Hefei 230031, China |
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| Abstract: | The thermal blooming effects of focusing multipulse laser was computed and analyzed by four-dimension code of laser propagation in atmosphere.The laser efficiency of propagation can be improved by using multi-pulse laser in the uniform atmosphere,when the number of pulses per flow time Np is from 2 to 6.The defined average pulses P can describe thermal blooming effects of multi-pulse laser propagating through the practical air under certain conditions. |
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| Keywords: | Propagation Multi-pulse Gas transit time across the beam Numerical calculation |
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