A library for computing the filtered and non-filtered 3D Greenʹs tensor associated with infinite homogeneous space and surfaces Original Research Article

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