| 湍流大气中高斯谢尔光束波前长期线刃位错 |
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| 引用本文： | 张逸新,王高刚. 湍流大气中高斯谢尔光束波前长期线刃位错[J]. 激光杂志, 2006, 27(2): 42-43 |
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| 作者姓名： | 张逸新 王高刚 |
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| 作者单位： | 江南大学理学院,江苏,无锡,214036;江南大学通信与控制工程学院,江苏,无锡,214036 |
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| 摘 要： | 采用Rytov近似和位错位置的长期统计平均的方法，研究了高斯谢尔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。研究并得出了长期曝光平均条件下波前刃位错位置的湍流系综统计平均理论关系，同时得出了光束短期平均刃位错位置表达式。
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| 关 键 词： | 高斯谢尔光束 大气湍流 波前线位错 |
| 文章编号： | 0253-2743（2006）02-0042-02 |
| 收稿时间： | 2005-04-06 |
| 修稿时间： | 2005-04-05 |
Wavefront long- term average line edge- Dislocation of a Gaussian- Schell beam in turbulent atmosphere |
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| ZHANG Yi-xin,WANG Gao-gang. Wavefront long- term average line edge- Dislocation of a Gaussian- Schell beam in turbulent atmosphere[J]. Laser Journal, 2006, 27(2): 42-43 |
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| Authors: | ZHANG Yi-xin WANG Gao-gang |
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| Affiliation: | 1.School of Science, Sonthem Yangtze University, Wuxi 214036,China; 2.School of Communication and Control Engineering, Sonthem Yangtze University, Wuxi 214036,China |
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| Abstract: | The relationship between the wave front edge - dislocation of a Gaussian - schell beam propagating in a weak turbulent atmosphere and in near ground and the turbulent - strength, the distance of propagation have been discussed by method of the Rytov approximation and the long- term average. The formules of the statistical average of wave front edge - dislocations have been developed in the cases that the averaging time is longer than the fluctuation periodic time of wave front. The short - term average position of line edge - dislocations also has been obtained. |
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| Keywords: | Gaussian- schell beam Atmospheric turbulence Wave- front hne Dislocation |
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