A Study of Optical Backscattering Enhancement from One-Dimensional Rough Surface Using Monte Carlo Method |
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Authors: | Lixin Guo Che-Young Kim Xizheng Ke Zhensen Wu |
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Affiliation: | (1) School of Science, Xidian University, Xi'an, 710071 Shaanxi Province, People's Republic of China;(2) Department of Electronics, Kyungpook National University, Taegu, 702-701, Korea |
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Abstract: | In this paper, according to Kirchhoff approximation, the optical backscattering enhancement of one-dimensional random rough surface, which includes fractal rough surfaces and random rough surfaces with Gaussian and exponential correlation simulated by Monte Carlo method, is obtained. It is shown that backscattering enhancement of random rough surfaces will increase with increasing the rms height of rough surface for a given correlation length. The angle width of backscattering enhancement is directly proportional to incident wavelength and inverse proportional to correlation length of rough surface. Complex phase of scattering field from superposed rough surface is uniformly distributed, none of the directions is of more overweight. The backscattering enhancement is also studied by wavelet analysis. The numerical results show good consistent with that of the relative references. |
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Keywords: | Light scattering Monte Carlo method fractal rough surface wavelet analysis |
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