物理学报Issue(3)：354-362,9.DOI:10.7498/aps.64.034208
部分相干双曲余弦厄米高斯光束在非Kolmogorov大气湍流中的传输特性
Propagation prop erties of partially coherent Hermite-cosh-Gaussian b eams in non-Kolmogorov turbulence
刘李辉 1吕炜煜 1杨超 1麦灿基 1陈德鹏1
作者信息
摘要
Abstract
Based on the extended Huygens-Fresnel principle and non-Kolmogorov spectrum, the analytical expressions for beam width and M 2-factor of partially coherent Hermite-cosh-Gaussian beams going through a non-Kolmogorov turbulence are derived by means of second moments for the Wigner distribution function. Results show that the relative beam width and normalized M 2-factor of partially coherent Hermite-cosh-Gaussian beams going through a non-Kolmogorov turbulence will increase when propagating in the turbulent atmosphere, and will be less affected by turbulent atmosphere with a larger beam, smaller coherent length, smaller Ch-part parameter. The relative beam width has a maximum value for increasing waist width, and normalized M 2-factor has a minimum value for increasing waist width in a specific extent of coherent length. The relative beam width and normalized M 2-factor both have maximum values according to the generalized power law, but decrease with increasing inner scale, and have nearly no change with increasing outer scale.关键词
部分相干双曲余弦厄米高斯光束/非Kolmogorov谱/大气湍流Key words
partially coherent Hermite-cosh-Gaussian beams/non-Kolmogorov spectrum/atmospheric turbulence引用本文复制引用
刘李辉,吕炜煜,杨超,麦灿基,陈德鹏..部分相干双曲余弦厄米高斯光束在非Kolmogorov大气湍流中的传输特性[J].物理学报,2015,(3):354-362,9.
