Abstract

Two methods for solving the problem of diffraction of a plane wave by a dielectric body of revolution located in a homogeneous dielectric layer are proposed. The methods are compared with each other using as an example the solution of the problem of scattering of a plane wave by a homogeneous spheroid and a circular cylinder of finite dimensions located in the layer. The results of calculations of the scattering diagram for the case of diffraction by a finite circular cylinder that is immersed into the layer and has variable material characteristics are presented. The dependences of the scattering diagram on the wavelength for plasmon particles located in a layered medium are obtained.

中文翻译：

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通过位于介电层中的旋转体解决衍射问题

摘要

提出了两种解决平面波被位于均匀介电层中的介电体旋转的问题的方法。将该方法彼此作比较，以解决均质球体和位于层中的有限尺寸圆柱体散射平面波的问题为例。给出了通过浸入该层中并具有可变材料特性的有限圆柱体进行衍射时的散射图的计算结果。获得位于层状介质中的等离激元粒子的散射图对波长的依赖性。