Barber P, Yeh C
Appl Opt. 1975 Dec 1;14(12):2864-72. doi: 10.1364/AO.14.002864.
The differential scattering characteristics of closed three-dimensional dielectric objects are theoretically investigated. The scattering problem is solved in a spherical basis by the Extended Boundary Condition Method (EBCM) which results in a system of linear equations for the expansion coefficients of the scattered field in terms of the incident field coefficients. The equations are solved numerically for dielectric spheres, spheroids, and finite cylinders to study the dependence of the differential scattering on the size, shape, and index of refraction of the scattering object. The method developed here appears to be most applicable to objects whose physical size is on the order of the wavelength of the incident radiation.
从理论上研究了封闭三维介质物体的微分散射特性。采用扩展边界条件法（EBCM）在球基中求解散射问题，该方法得出了一个线性方程组，用于根据入射场系数确定散射场展开系数。针对介质球体、椭球体和有限圆柱体，对这些方程进行了数值求解，以研究微分散射对散射物体的尺寸、形状和折射率的依赖性。这里开发的方法似乎最适用于物理尺寸与入射辐射波长量级相当的物体。
