Zero-dimensional polariton laser in a subwavelength grating-based vertical microcavity

Bo Zhang, Zhaorong Wang, Sebastian Brodbeck, Christian Schneider, Martin Kamp, Sven Hoefling, Hui Deng*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

75 Citations (Scopus)


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.

Original languageEnglish
Article numbere135
Number of pages5
JournalLight: Science & Applications
Publication statusPublished - 3 Jan 2014


  • Bose-Einstein condensation
  • Microcavity
  • Photonic crystal
  • Polariton


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