Аннотации:
Structural boundaries, materials and feeding sources are the three fundamental segments
defining photonic devices. Since excitation is usually dictated by the application and there
are infinite ways to select the spatial configuration of the component, an optimization with respect
to the used media is both doable and useful. We provide several combinations of elements
and compounds making high-performing electromagnetic devices in terms of absorption, scattering
and unusual refraction with simple structures like bilayers, two- and three- dimensional
core-shell particles or binary metasurfaces. Such large sets of potential candidates for the employed
media can be deployed by experimentalists after applying a secondary sweep by imposing
additional constraints concerning ease of fabrication.