Platform for electrically pumped polariton simulators and topological lasers
Abstract
Two-dimensional electronic materials such as graphene and transition metal dichalgenides feature unique electrical and optical properties due to the conspirative effect of band structure, orbital coupling, and crystal symmetry. Synthetic matter, as accomplished by artificial lattice arrangements of cold atoms, molecules, electron patterning, and optical cavities, has emerged to provide manifold intriguing frameworks to likewise realize such scenarios. Exciton-polaritons have recently been added to the list of promising candidates for the emulation of system Hamiltonians on a semiconductor platform, offering versatile tools to engineer the potential landscape and to access the non-linear electro-optical regime. In this work, we introduce an electronically driven square and honeycomb lattice of exciton-polaritons, paving the way towards real world devices based on polariton lattices for on-chip applications. Our platform exhibits laser-like emission from high-symmetry points under direct current injection, hinting at the prospect of electrically driven polariton lasers with possibly topologically non-trivial properties.
Citation
Suchomel , H , Klembt , S , Harder , T H , Klaas , M , Egorov , O A , Winkler , K , Emmerling , M , Thomale , R , Höfling , S & Schneider , C 2018 , ' Platform for electrically pumped polariton simulators and topological lasers ' , Physical Review Letters , vol. 121 , no. 25 , 257402 .
Publication
Physical Review Letters
Status
Peer reviewed
ISSN
0031-9007Type
Journal article
Rights
© 2018 American Physical Society. This work has been made available online in accordance with the publisher’s policies. This is the author created accepted version manuscript following peer review and as such may differ slightly from the final published version. The final published version of this work is available at https://doi.org/10.1103/PhysRevLett.121.257402
Description
We acknowledge support by the ImPACT Program, Japan Science and Technology Agency, the State of Bavaria and by the German Research Foundation (DFG) within project SCHN1376/2-1, SCHN1376/3-1 and KL3124/2-1. S.K. acknowledges the European Commission for the H2020 Marie Sklodowska-Curie Actions (MSCA) fellowship (Topopolis). R.T. is supported by the DFG through SFB 1170 (project B04) and by the European Research Council through ERC-StGTOPOLECTRICS- Thomale-336012. S.H. acknowledges support within the EPSRC Hybrid Polaritonics Grant (EP/M025330/1).Collections
Items in the St Andrews Research Repository are protected by copyright, with all rights reserved, unless otherwise indicated.