Kagome Flatbands for Coherent Exciton-Polariton Lasing
arXiv:2011.10766 · doi:10.1021/acsphotonics.1c00950
Abstract
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. Subsequently, we focus on the spatial and temporal coherence properties of the laser-like emission from these polariton condensates that are closely connected to the flatband nature of the system. Notably, we find a drastic increase in coherence time due to the localization of flatband condensates. Our work illustrates the outstanding suitability of the exciton-polariton system for detailed studies of flatband states as a platform for microlaser arrays in compact localized states, including strong interactions, topology and non-linearity.
arXiv comment19 pages, 5 figures
References in corpus (46)
- Topological Photonics
- Quantum Spin Liquid States
- Giant anomalous Hall effect in a ferromagnetic Kagome-lattice semimetal
- Spin Liquid Ground State of the Kagome Heisenberg Model
- High temperature fractional quantum Hall states
- Fractionalized excitations in the spin liquid state of a kagomé lattice antiferromagnet
- Massive Dirac fermions in a ferromagnetic kagome metal
- Nearly-flat bands with nontrivial topology
- Lasing in topological edge states of a 1D lattice
- Dirac fermions and flat bands in the ideal kagome metal FeSn
- Spin Anisotropy and Quantum Hall Effect in the Kagome Lattice - Chiral Spin State based on a Ferromagnet-
- Excitations in a non-equilibrium Bose-Einstein condensate of exciton-polaritons
- Exciton-polariton topological insulator
- Direct observation of Dirac cones and a flatband in a honeycomb lattice for polaritons
- Artificial graphene as a tunable Dirac material
- Band touching from real space topology in frustrated hopping models
- Giant and anisotropic many-body spin-orbit tunability in a strongly correlated kagome magnet
- Ferromagnetism in the Hubbard Model-- Examples from Models with Degenerate Single-Electron Ground States
- Bosonic Condensation and Disorder-Induced Localization in a Flat Band
- Fractional Quantum Hall Effect of Hard-Core Bosons in Topological Flat Bands
- Theoretical prediction of a strongly correlated Dirac metal
- Spatial and spectral shape of inhomogeneous non-equilibrium exciton-polariton condensates
- Classification of flat bands according to the band-crossing singularity of Bloch wave functions
- Exciton Polaritons in a Two-Dimensional Lieb Lattice with Spin-Orbit Coupling
- Spin-orbit coupling and optical spin Hall effect in photonic graphene
- Chiral Bogoliubons in Nonlinear Bosonic Systems
- Stochastic classical field model for polariton condensates
- Dirac Fermions in Antiferromagnetic FeSn Kagome Lattices with Combined Space Inversion and Time Reversal Symmetry
- Magnetic topological lithography: Gateway to the artificial spin ice manifold
- Topological excitations in a Kagomé magnet
- Room temperature Organic Exciton-Polariton Condensate in a Lattice
- Exploring nonlinear topological states of matter with exciton-polaritons: Edge solitons in kagome lattice
- Observation of flat band for terahertz spoof plasmon in metallic kagomé lattice
- Polariton condensation in - and -flatbands in a two-dimensional Lieb lattice
- Synthetic band-structure engineering in polariton crystals with non-Hermitian topological phases
- Nonlinear Polariton Fluids in a Flatband Reveal Discrete Gap Solitons
- A Coherent Polariton Laser
- Room temperature topological polariton laser in an organic lattice
- A platform for electrically pumped polariton simulators and topological lasers
- Interaction-Enhanced Group Velocity of Bosons in the Flat Band of an Optical Kagome Lattice
- Rapid fair sampling of XY spin Hamiltonian with a laser simulator
- Kagome Lattice from Exciton-Polariton Perspective
- Exciton-polaritons in flatland: Controlling flatband properties in a Lieb lattice
- Photonic Flatband Laser
- Evolution of temporal coherence in confined polariton condensates
- Spontaneous and Superfluid Chiral Edge States in Exciton-Polariton Condensates