Transverse magneto-photonic transmission effect in non-symmetric nanostructures with comb-like plasmonic gratings

Abstract

Spatial symmetry breaking in the magnetoplasmonic system results in magneto-optical effects prohibited in symmetric structures. The transverse magneto-photonic transmission effect (TMPTE), occurs thereby, which is characterized by a non-zero transmission dependency on magnetism at normal incidence of light. This phenomenon is due to inequality of the forward and backward surface plasmon polariton (SPP) waves at the metal/dielectric interface in non-symmetric plasmonic grating. Here we investigate the TMPTE in magnetoplasmonic nanostructures with comb-like gratings and explore how to optimize its parameters for the magnitude of the effect.