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首页> 外文期刊>Optics Letters >Scattering of light from a stationary nonuniformly correlated medium
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Scattering of light from a stationary nonuniformly correlated medium

机译：来自固定非均匀相关介质的光散射

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A mathematical model for describing a three-dimensional, nonuniformly correlated, weak scattering medium is introduced. It is assumed that the medium occupies a volume in which a relatively high degree of spatial refractive index correlation may exist in some small sub-region, whether on or off its center. Within the validity of the first-order Born approximation, the far-zone spectral density of a plane wave scattered from such a medium is determined. We find that the introduced scatterer has a remarkable capability for producing a focused peak on or off the scattering axis. It is shown that by altering the position of the high correlation center within the medium, it is possible to control the peak position and peak intensity of the scattered spectral density. For certain combinations of the average medium's correlation width and the location of the highly correlated region, the scattered spectral density (intensity) may also acquire one-dimensional sidelobes. (C) 2016 Optical Society of America
机译：介绍了用于描述三维非均匀相关弱散射介质的数学模型。假设介质占据了一定的体积，其中某个较小的子区域中可能存在较高程度的空间折射率相关性，无论该区域是否在其中心。在一阶Born逼近的有效性范围内，确定了从这种介质散射的平面波的远区光谱密度。我们发现，引入的散射体具有在散射轴上或散射轴外产生聚焦峰的显着能力。结果表明，通过改变介质内高相关中心的位置，可以控制散射光谱密度的峰值位置和峰值强度。对于平均介质的相关宽度和高度相关区域的位置的某些组合，散射的光谱密度（强度）也可以获取一维旁瓣。 （C）2016美国眼镜学会

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