Broadband and giant nonreciprocity at the subwavelength scale in magnetoplasmonic materials
Broadband and giant nonreciprocity at the subwavelength scale in magnetoplasmonic materials
We unveil a previously overlooked wave propagation regime in magnetized plasmonic (gyrotropic) materials with comparable plasma and cyclotron frequencies, which enables a giant and broadband (nondispersive) nonreciprocal response. We show that this effect is due to a natural form of dispersion compensation that ultimately originates from the subtle implications of …