Volumetric metamaterials versus impedance surfaces in scattering applications
Volumetric metamaterials versus impedance surfaces in scattering applications
Abstract Artificially created media allow employing material parameters as additional valuable degrees of freedom in tailoring electromagnetic scattering. In particular, metamaterials with either negative permeability or permittivity allow creating deeply subwavelength resonant structures with relatively high scattering cross-sections. However, the equivalence principle allows replacing volumetric structures with properly designed curved …