光学学报, 2017, 37 (6): 0626001, 网络出版: 2017-06-08   

艾里光束的光强闪烁研究 下载: 518次

Light Intensity Scintillation of Airy Beam
作者单位
1 长春理工大学光电工程学院, 吉林 长春 130022
2 长春理工大学光电工程学院微纳光学制造实验室, 吉林 长春 130022
摘要
基于Rytov方法并采用von-Karman模型对艾里光束的光强闪烁进行了分析。根据接收器接收面上光强度分布不均匀的现象, 提出了艾里光束的面光强闪烁模型, 推导了艾里光束在大气湍流中的面光强闪烁的表达式。数值仿真结果表明: 当光束宽度一定时, 相同光束传播距离下指数截断因子越小, 光强闪烁越小; 当传播距离为3 km、指数截断因子为0.2时, 艾里光束的宽度约为1.6 cm, 光强闪烁最小。此外, 光源强度和接收光强相同时, 将艾里光束与高斯光束进行了对比, 发现艾里光束的光强闪烁小于高斯光束的光强闪烁。
Abstract
The light intensity scintillation of Airy beam is analyzed based on von-Karman model and Rytov method. According to the uneven distribution of light intensity on the receiving plane of receiver, a surface light intensity scintillation model of Airy beam is proposed, and surface light intensity scintillation expressions of Airy beam are derived. The simulation results show that, when the beam width is fixed and the propagation distances are equal, the smaller the exponential truncation factor is, the smaller the light intensity scintillation is. The smallest light intensity scintillation of Airy beam is achieved with propagation distance of 3 km, exponential truncation factor of 0.2 and beam width around 1.6 cm. Furthermore, the light intensity scintillation of Airy beam is smaller than that of Gaussian beam with the same light source intensity and receiving light intensity.
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王加安, 王馨兰, 郭林炀, 车英, 尹鹏. 艾里光束的光强闪烁研究[J]. 光学学报, 2017, 37(6): 0626001. Wang Jiaan, Wang Xinlan, Guo Linyang, Che Ying, Yin Peng. Light Intensity Scintillation of Airy Beam[J]. Acta Optica Sinica, 2017, 37(6): 0626001.

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