Magneto-optical phenomena such as Faraday and Kerr effects play a decisive role for establishing control over polarization and intensity of optical fields propagating in a medium.
Intensity effects where the direction of light emission depends on the orientation of the external magnetic field are of particular interest since they can be used for routing the light.
Here, we report on a new class of transverse emission phenomena, where directionality appears perpendicular to a magnetic field and manifested for the light source located in the vicinity of the
surface.
In collaboration with experimental group from the Technical University of Dortmund we demonstrate routing emission for localized excitons in a diluted-magnetic-semiconductor quantum well. The directionality is significantly enhanced in hybrid plasmonic semiconductor structures
where plasmonic spin fluxes at the metal-semiconductor interface in angle resolved far field emission are detected.