Multistable circular currents of polariton condensates trapped in ring potentials

Abstract

We demonstrate the formation and trapping of different stationary solutions, oscillatory solutions, and rotating solutions of a polariton condensate in a planar semiconductor microcavity with a built-in ring-shaped potential well. Multistable ring shaped solutions are trapped in shallow potential wells. These solutions have the same ring shaped density distribution but different topological charges, corresponding to different orbital angular momentum (OAM) of the emitted light. For stronger confinement potentials, besides the fundamental modes, higher excited (dipole) modes can also be trapped. If two modes are excited simultaneously, their beating produces a complex oscillation and rotation dynamics. When the two modes have the same OAM, a double-ring solution forms for which the density oscillates between the inner and the outer ring. When the two modes have different OAM, a rotating solution with a crescent-shaped density and fractional OAM is created.

References in corpus (5)

• Quantised Vortices in an Exciton-Polariton Fluid
• Excitations in a non-equilibrium Bose-Einstein condensate of exciton-polaritons
• Creation of orbital angular momentum states with chiral polaritonic lenses
• Optical bistability in a GaAs based polariton diode
• Gain-induced trapping of microcavity exciton polariton condensates

Cited by in corpus (5)

• Electrically controlling vortices in a neutral exciton polariton condensate at room temperature
• Structuring co- and counter-flowing currents of polariton condensates in concentric ring-shaped potentials
• Topologically driven Rabi-oscillating interference dislocation
• Multistable localized states in highly photonic polariton rings with a quasiperiodic modulation
• Orbital Frontiers: Harnessing Higher Modes in Photonic Simulators