Authors: Klompmaker, Lars
Poddubny, Alexander N.
Yalcin, Eyüp
Litvin, Leonid V.
Jede, Ralf
Karczewski, Grzegorz
Chusnutdinow, Sergij
Wojtowicz, Tomasz
Yakovlev, Dmitri R.
Bayer, Manfred
Akimov, Ilya A.
Title: Transverse magnetic routing of light emission in hybrid plasmonic-semiconductor nanostructures: towards operation at room temperature
Language (ISO): en
Abstract: We study experimentally and theoretically the temperature dependence of transverse magnetic routing of light emission from hybrid plasmonic-semiconductor quantum well structures where the exciton emission from the quantum well is routed into surface plasmon polaritons propagating along a nearby semiconductor-metal interface. In II-VI and III-V direct-band semiconductors the magnitude of routing is governed by the circular polarization of exciton optical transitions, that is induced by a magnetic field. For structures comprising a (Cd,Mn)Te/(Cd,Mg)Te diluted magnetic semiconductor quantum well we observe a strong directionality of the emission up to 15% at low temperature of 20K and magnetic field of 485mT due to giant Zeeman splitting of holes mediated via the strong exchange interaction with Mn2+ ions. For increasing temperatures towards room temperature the magnetic susceptibility decreases and the directionality strongly drops to 4% at about 65 K. We also propose an alternative design based on a nonmagnetic (In,Ga)As/(In,Al)As quantum well structure, suitable for higher temperatures. According to our calculations, such structure can demonstrate emission directionality up to 5% for temperatures below 200 K and moderate magnetic fields of 1 T.
Issue Date: 2022-01-28
Rights link:
Appears in Collections:Experimentelle Physik II

Files in This Item:
File Description SizeFormat 
PhysRevResearch.4.013058.pdf2.63 MBAdobe PDFView/Open

This item is protected by original copyright

This item is licensed under a Creative Commons License Creative Commons