Material-independent modes for electromagnetic scattering
Mesoscale and Nanoscale Physics
2016-11-15 v1
Abstract
In this Letter, we introduce a representation of the electromagnetic field for the analysis and synthesis of the full-wave scattering by a homogeneous dielectric object of arbitrary shape in terms of a set of eigenmodes independent of its permittivity. The expansion coefficients are rational functions of the permittivity. This approach naturally highlights the role of plasmonic and photonic modes in any scattering process and suggests a straightforward methodology to design the permittivity of the object to pursue a prescribed tailoring of the scattered field. We discuss in depth the application of the proposed approach to the analysis and design of the scattering properties of a dielectric sphere.
Cite
@article{arxiv.1611.04501,
title = {Material-independent modes for electromagnetic scattering},
author = {Carlo Forestiere and and Giovanni Miano},
journal= {arXiv preprint arXiv:1611.04501},
year = {2016}
}