Electromagnetic characterization of a silver nanowire grating embedded into a dielectric slab

The electromagnetic properties of a silver nanowire grating embedded into a dielectric slab are investigated, using a Maxwellian formalism, to determine and distinguish effects caused by the structure periodicity and by the presence of silver wires which entail plasmon resonances. The interaction of these two effects gives an opportunity to control the qualitative characteristics of the plasmon resonance while the variation of the slab refractive index allows managing its wavelength.