Steady state oscillations of circular currents in concentric polariton condensates
arXiv:2210.05306 · doi:10.1038/s41598-023-31520-z
Abstract
Concentric ring exciton polariton condensates emerging under non-resonant laser pump in an annular trapping potential support persistent circular currents of polaritons. The trapping potential is formed by a cylindrical micropillar etched in a semiconductor microcavity with embedded quantum wells and a repulsive cloud of optically excited excitons under the pump spot. The symmetry of the potential is subject to external control via manipulation by its pump-induced component. In the manuscript, we demonstrate excitation of concentric ring polariton current states with predetermined vorticity which we trace using interferometry measurements with a spherical reference wave. We also observe the polariton condensate dynamically changing its vorticity during observation, which results in pairs of fork-like dislocations on the time-averaged interferogram coexisting with azimuthally homogeneous photoluminescence distribution in the micropillar.
References in corpus (14)
- Quantum fluids of light
- Exciton-polariton condensates
- Nonreciprocal Photon Transmission and Amplification via Reservoir Engineering
- Propagation and amplification dynamics of 1D polariton condensates
- Creation of orbital angular momentum states with chiral polaritonic lenses
- Frequency combs with weakly lasing exciton-polariton condensates
- Controllable structuring of exciton-polariton condensates in cylindrical pillar microcavities
- Optically controlled polariton condensate molecules
- Ballistic transport of a polariton ring condensate with spin precession
- Pseudo-conservative dynamics of coupled polariton condensates
- Structuring co- and counter-flowing currents of polariton condensates in concentric ring-shaped potentials
- Double ring polariton condensates with polariton vortices
- Stochastic circular persistent currents of exciton polaritons
- Dissipative Josephson vortices in annular polariton fluids