Kuik F, de Haan J F, Hovenier J W
Appl Opt. 1994 Jul 20;33(21):4906-18. doi: 10.1364/AO.33.004906.
We consider two topics pertaining to light scattering by circular cylinders. (A) Scattering properties of cylinders with increasing aspect ratio are studied. It is shown that the solution for finite cylinders does not converge to the solution for infinitely long cylinders if the aspect ratio increases. This is due to differences in the treatment of diffraction for finite and infinite cylinders. (B) Finite cylinders have sharp edges, so their scattering properties differ from those of spheroids having the same aspect ratio. To illustrate these differences we present scattering matrix elements of cylinders and spheroids for a large set of aspect ratios. To handle the large amount of data, the scattering matrix elements as functions of aspect ratio and scattering angle are presented in so-called three-dimensional figures.
我们考虑与圆柱体光散射相关的两个主题。(A) 研究了长径比增加时圆柱体的散射特性。结果表明，如果长径比增加，有限圆柱体的解不会收敛到无限长圆柱体的解。这是由于有限圆柱体和无限圆柱体在衍射处理上的差异。(B) 有限圆柱体有尖锐的边缘，因此它们的散射特性与具有相同长径比的球体不同。为了说明这些差异，我们给出了一大组长径比下圆柱体和球体的散射矩阵元。为了处理大量数据，散射矩阵元作为长径比和散射角的函数以所谓的三维图形式呈现。
