| 湍流大气中高斯光束波前刃位错 |
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| 引用本文： | 张逸新 杜小勇 陶纯堪. 湍流大气中高斯光束波前刃位错[J]. 激光杂志, 2004, 25(5): 54-56 |
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| 作者姓名： | 张逸新 杜小勇 陶纯堪 |
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| 作者单位： | 江南大学理学院,江苏无锡,214036;南京理工大学电光学院,江苏南京,210014;江南大学理学院,江苏无锡,214036;南京理工大学电光学院,江苏南京,210014 |
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| 基金项目： | 教育部科学研究重点项目 (编号 :0 10 91) |
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| 摘 要： | 在Rytov近似下 ,通过引入统计平均位错的概念研究了高斯光束通过近地面湍流大气传播时波前刃位错位置与湍流大气强度和传播距离等参数的关系。分别在远大于和远小于光波位相起伏周期的两种情况下 ,研究并得出了波前刃位错位置的湍流系综统计平均理论关系
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| 关 键 词： | 高斯光束 大气湍流 波前位错 |
| 文章编号： | 0253-2743(2004)05-0054-03 |
| 修稿时间： | 2003-09-16 |
Wave-front edge-dislocation of a Gaussian beam in turbulent atmosphere |
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| ZHANG Yi-xin ,,DU Xiao-yong ,TAO Chun-kan .School of Science,Southern Yangtze University,Wuxi ,China, .School of Electrooptics,Nanjing University of Science and Technology,Nanjing ,China. Wave-front edge-dislocation of a Gaussian beam in turbulent atmosphere[J]. Laser Journal, 2004, 25(5): 54-56 |
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| Authors: | ZHANG Yi-xin DU Xiao-yong TAO Chun-kan .School of Science Southern Yangtze University Wuxi China .School of Electrooptics Nanjing University of Science Technology Nanjing China |
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| Affiliation: | ZHANG Yi-xin 1,2,DU Xiao-yong 1,TAO Chun-kan 2 1.School of Science,Southern Yangtze University,Wuxi 214036,China, 2.School of Electrooptics,Nanjing University of Science and Technology,Nanjing 210014,China |
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| Abstract: | The relationship between the wave front edge-dislocation of a Gaussian beam propagating in a weak turbulent atmosphere and in near ground and the turbulent-strength,the distance of propagation have been discussed by the Rytov approximation.The formulas of the statistical average of wave front edge-dislocations have been developed in the cases that the averaging time is shorter than the fluctuation periodic time of wave front and the averaging time is longer than the fluctuation periodic time of wave front. |
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| Keywords: | Gaussian beam atmospheric turbulence wave-front dislocation |
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