Kagome Flatbands for Coherent Exciton-Polariton Lasing

Understand

Kagome lattices supporting Dirac cone and flatband dispersions are well known as a highly frustrated, two-dimensional lattice system.

• Particularly the flatbands therein are attracting continuous interest based on their link to topological order, correlations and frustration.
• In this work, we realize coupled microcavity implementations of Kagome lattices hosting exciton-polariton quantum fluids of light.
• We demonstrate precise control over the dispersiveness of the flatband as well as selective condensation of exciton-polaritons into the flatband.