| 部分相干电磁光束在湍流介质中传输的光谱变化 |
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| 引用本文： | 石丽芬,蒲继雄,陈子阳.部分相干电磁光束在湍流介质中传输的光谱变化[J].大气与环境光学学报,2007,2(4):251-256. |
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| 作者姓名： | 石丽芬 蒲继雄 陈子阳 |
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| 作者单位： | 华侨大学电子科学与技术系光学与光子学研究所,福建,泉州,362021 |
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| 基金项目： | 国家自然科学基金
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福建省自然科学基金 |
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| 摘 要： | 从推广的惠更斯-菲涅尔原理出发,推导出了部分相干电磁光束的光谱在湍流介质中传输的表达式,并以电磁高斯-谢尔模型(EGSM)光束为例,研究了湍流对电磁高斯-谢尔模型光束光谱的影响.研究结果表明,在湍流介质中传输的部分相干电磁光束的光谱会随着折射率结构常数、空间相干长度、光斑大小的改变而变化.
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| 关 键 词： | 光谱 湍流介质 部分相干电磁光束 |
| 文章编号： | 1673-6141（2007）04-0251-06 |
| 收稿时间： | 2006/12/12 |
| 修稿时间： | 2006-12-122007-01-19 |
Spectral Changes of Partially Coherent Electromagnetic Beams Propagating in Turbulent Atmosphere |
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| SHI Li-fen,PU Ji-xiong,CHEN Zi-yang.Spectral Changes of Partially Coherent Electromagnetic Beams Propagating in Turbulent Atmosphere[J].Journal of Atmospheric and Environmental Optics,2007,2(4):251-256. |
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| Authors: | SHI Li-fen PU Ji-xiong CHEN Zi-yang |
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| Abstract: | Based on the extended Huygens-Fresnel principle,the expression for the spectrum of partially coherent electromagnetic beams in turbulent atmosphere is derived and numerical calculations are performed. The influences of turbulence on the spectra of the electromagnetic Gaussian Schell-model(EGSM)beam are studied,taking example for partially coherent light.It is demonstrated that the spectra of partially coherent electromagnetic beams change on propagation in the turbulent atmosphere with the change of the refractive index structure constant,the spatial coherent length and the beam width. |
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| Keywords: | spectrum turbulent atmosphere partially coherent electromagnetic beams |
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