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. |
URI: | http://hdl.handle.net/2003/40716 http://dx.doi.org/10.17877/DE290R-22574 |
Issue Date: | 2022-01-28 |
Rights link: | https://creativecommons.org/licenses/by/4.0/ |
Appears in Collections: | Experimentelle Physik II |
Files in This Item:
File | Description | Size | Format | |
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PhysRevResearch.4.013058.pdf | 2.63 MB | Adobe PDF | View/Open |
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