| 部分相干环状平顶光束在大气湍流中的传输特性 |
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| 引用本文： | 陈晓文,贺超,魏小琴,汤明玥.部分相干环状平顶光束在大气湍流中的传输特性[J].渝西学院学报(自然科学版),2011(2):37-40,58. |
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| 作者姓名： | 陈晓文 贺超 魏小琴 汤明玥 |
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| 作者单位： | 川北医学院影像系; |
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| 基金项目： | 川北医学院苗圃基金(09-11) |
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| 摘 要： | 文章研究了部分相干环状平顶光束在大气湍流中的传输性质,并推导出该光束在大气湍流中的角扩散解析表达式.研究表明,在一定条件下,两个不同的部分相干环状平顶光束、环状高斯谢尔模型(GSM)光束能够在自由空间及大气湍流中传输具有相同的角扩散.对该理论结果给出了相应的物理解释.
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| 关 键 词： | 传输特性 大气湍流 部分相干环状平顶光束 |
The propagation properties of partially coherent annular flat-topped beams through turbulence |
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| Authors: | CHEN Xiao-wen HE Chao WEI Xiao-qin TANG Ming-yue |
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| Institution: | CHEN Xiao-wen,HE Chao,WEI Xiao-qin,TANG Ming-yue (Imaging Department,North Sichuan Medical College,Nanchong Sichuan 637000,China) |
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| Abstract: | The propagation properties of partially coherent annular flat-topped beams through turbulence are studied,and the closed-form expression for the angular spread of partially coherent annular flat-topped beams propagating through atmospheric turbulence is derived by using the integral transform technique.It is shown that,under a certain condition,two different partially coherent annular flat-topped beams and annular GSM beam may generate the same directionality both in free space and in turbulence.The theoret... |
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| Keywords: | propagation properties atmospheric turbulence partially coherent annular flat-topped beam |
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