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arXiv · 1304.2061

Zero Dimensional Polariton Laser in a Sub-Wavelength Grating Based Vertical Microcavity

Bo Zhang·Zhaorong Wang·Sebastian Brodbeck·Christian Schneider·Martin Kamp·Sven Hoefling·Hui Deng
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Abstract

Semiconductor exciton-polaritons in planar microcavities form coherent two-dimensional condensates in non-equilibrium. However, coupling of multiple lower-dimensional polariton quantum systems, critically needed for polaritonic quantum device applications and novel cavity-lattice physics, has been limited due to the conventional cavity structures. Here we demonstrate full confinement of the polaritons non-destructively using a hybrid cavity made of a single-layer sub-wavelength grating mirror and a distributed Bragg reflector. Single-mode polariton lasing was observed at a chosen polarization. Incorporation of a designable slab mirror into the conventional vertical cavity, when operating in the strong-coupling regime, enables confinement, control and coupling of polariton gasses in a scalable fashion. It may open a door to experimental implementation of polariton-based quantum photonic devices and coupled cavity quantum electrodynamics systems.

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Bo Zhang, Zhaorong Wang, Sebastian Brodbeck, Christian Schneider, Martin Kamp, Sven Hoefling, Hui Deng. 2014-01-09. Zero Dimensional Polariton Laser in a Sub-Wavelength Grating Based Vertical Microcavity. https://doi.org/10.1038/lsa.2014.16

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