Transverse magnetic routing of light emission in hybrid plasmonic-semiconductor nanostructures: Towards operation at room temperature

We study experimentally and theoretically the temperature dependence of transverse magnetic routing light emission from hybrid plasmonic-semiconductor quantum well structures where exciton is routed into surface plasmon polaritons propagating along a nearby semiconductor-metal interface. In II-VI III-V direct band semiconductors magnitude governed by circular polarization optical transitions, that induced field. For comprising (Cd,Mn)Te/(Cd,Mg)Te diluted semiconductor we observe strong directionality up to 15% at low 20 K field 485 mT due giant Zeeman splitting holes mediated via exchange interaction with Mn$^{2+}$ ions. increasing temperatures towards room-temperature susceptibility decreases strongly 4% T = 45 K. also propose an alternative design based on non-magnetic (In,Ga)As/(In,Al)As structure, suitable for higher temperatures. According our calculations, such structure can demonstrate 5% below 200 moderate fields 1 T.