Chinese Optics Letters, 2021, 19 (4): 041404, Published Online: Feb. 4, 2021  

Speckle characteristics of simulated deep Fresnel region under shadowing effect Download: 569次

Author Affiliations
School of Science, Shandong Jianzhu University, Jinan 250101, China
Abstract
After the three-dimensional self-affine fractal random surface simulation, we use the optical scattering theory to calculate the deep Fresnel region speckle (DFRS) under consideration of the more strict shadowing effect. The evolution of DFRS with the scattering distance and the intensity probability distribution are studied. It is found that the morphology of the scatterer has an antisymmetric relationship with the intensity distribution of DFRS, and the effect of micro-lenses on the scattering surface causes the intensity probability distribution of DFRS to deviate from the Gaussian speckle in the high light intensity area.

Zengshun Jiang, Xingqi An, Yuqin Zhang, Xuan Liu, Xifeng Qin, Yanjie Zhao, Huilin Wang, Guiyuan Liu, Hongsheng Song. Speckle characteristics of simulated deep Fresnel region under shadowing effect[J]. Chinese Optics Letters, 2021, 19(4): 041404.

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