Zero-dimensional polariton laser in a subwavelength grating-based vertical microcavity
Abstract
Semiconductor exciton-polaritons in planar microcavities form coherent two-dimensional condensates in non-equilibrium. However, the coupling of multiple lower-dimensional polariton quantum systems, which are critical for polaritonic quantum device applications and novel cavity-lattice physics, has been limited in conventional cavity structures. Here, we demonstrate full non-destructive confinement of polaritons using a hybrid cavity composed of a single-layer subwavelength grating mirror and a distributed Bragg reflector. Single-mode polariton lasing was observed at a chosen polarization. The incorporation of a designable slab mirror in a conventional vertical cavity, when operating in the strong-coupling regime, enables the confinement, control and coupling of polariton gasses in a scalable fashion. This approach may open the door to experimental implementations of polariton-based quantum photonic devices and coupled cavity quantum electrodynamic systems.
Citation
Zhang , B , Wang , Z , Brodbeck , S , Schneider , C , Kamp , M , Hoefling , S & Deng , H 2014 , ' Zero-dimensional polariton laser in a subwavelength grating-based vertical microcavity ' , Light: Science & Applications , vol. 3 , e135 . https://doi.org/10.1038/lsa.2014.16
Publication
Light: Science & Applications
Status
Peer reviewed
ISSN
2047-7538Type
Journal article
Description
BZ, ZW and HD acknowledge support from the National Science Foundation under Awards DMR 1150593 for measurements and OISE 1132725 for travel expenses and the Air Force Office of Scientific Research under Award FA9550-12-1-0256 for device fabrication and characterization. CS, SB, MK and SH acknowledge support from the State of Bavaria, Germany. Fabrication of the SWG was performed at the Lurie Nanofabrication Facility, which is part of the National Science Foundation NNIN network.Collections
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