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Arbitrary shaped beam scattering from a chiral-coated conducting object with arbitrary monochromatic illumination

机译:带有任意单色照明的手性涂层导电物体的任意形状的光束散射

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摘要

An exact semi-analytical method of calculating the scattered fields from a chiral-coated conducting object under arbitrary shaped beam illumination is developed. The scattered fields and the fields within the chiral coating are expanded in terms of appropriate spherical vector wave functions. The unknown expansion coefficients are determined by solving an infinite system of linear equations derived using the method of moments technique and the boundary conditions. For incidence of a Gaussian beam, circularly polarized wave, zero-order Bessel beam and Hertzian electric dipole radiation on a chiral-coated conducting spheroid and a chiral-coated conducting circular cylinder of finite length, the normalized differential scattering cross sections are evaluated and discussed briefly.
机译:提出了一种精确的半解析方法,用于计算在任意形状的光束照射下手性涂层导电物体的散射场。散射场和手性涂层内的场根据适当的球形矢量波函数而扩展。通过求解使用矩量法和边界条件得出的线性方程组的无限系统,可以确定未知的膨胀系数。对于高斯束,圆极化波,零阶贝塞尔光束和赫兹电偶极子辐射在有限长度的手性包覆导电球体和手性包覆导电圆柱体上的入射,评估并讨论了归一化微分散射截面简要地。

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