A library for computing the filtered and non-filtered 3D Green's tensor associated with infinite homogeneous space and surfaces

Abstract
We describe a library to compute various types of Green's tensor for three-dimensional electromagnetic scattering calculations. This library includes the retarded and non-retarded (quasi-static) Green's tensors for infinite homogeneous space and the non-retarded Green's tensor associated with a surface. Both standard and filtered Green's tensor can be computed. Filtered Green's tensor can be used to accurately investigate high permittivity scatterers with the coupled-dipole approximation. ...

Title of program: LIBG3D
Catalogue Id: ADPS_v1_0

Nature of problem
Computation of the Green's tensor G(r,r'), i.e. of the field radiated at the observation point r by three orthogonal source dipoles located at r'. This dyadic is computed both for free space and for a surface in the quasi-static limit. Further, the so-called filtered Green's tensor, which increases the application range of the coupled-dipole approximation to higher permittivity scatterers can also be computed [1].

Versions of this program held in the CPC repository in Mendeley Data
ADPS_v1_0; LIBG3D; 10.1016/S0010-4655(01)00471-4

This program has been imported from the CPC Program Library held at Queen's University Belfast (1969-2019)

**摘要**
本文介绍一款面向三维电磁散射计算的各类格林张量（Green's tensor）求解库。该库涵盖无限均匀空间下的推迟势与非推迟势（准静态）格林张量，以及与界面相关的非推迟势格林张量。库中可实现标准格林张量与滤波格林张量的计算，其中滤波格林张量可借助偶极耦合近似（coupled-dipole approximation）精准研究高介电常数散射体。……

**程序标题**：LIBG3D
**目录编号**：ADPS_v1_0

**问题本质**
求解格林张量G(r,r')，即位于源点r'的三个正交源偶极子在观测点r处辐射的电磁场。该并矢张量可分别针对自由空间与准静态极限下的界面进行计算。此外，本程序还可求解所谓的滤波格林张量，该张量可将偶极耦合近似的应用范围拓展至高介电常数散射体[1]。

**Mendeley Data收录的CPC程序库版本**：
ADPS_v1_0; LIBG3D; 10.1016/S0010-4655(01)00471-4

本程序源自贝尔法斯特女王大学馆藏的CPC程序库（1969-2019年）