Chiral emission induced by optical Zeeman effect in polariton micropillars
arXiv:2107.11131 · doi:10.1103/PhysRevResearch.3.043161
Abstract
The low sensitivity of photons to external magnetic fields is one of the major challenges for the engineering of photonic lattices with broken time-reversal symmetry. Here we show that time-reversal symmetry can be broken for microcavity polaritons in the absence of any external magnetic field thanks to polarization dependent polariton interactions. Circularly polarized excitation of carriers in a micropillar induces a Zeeman-like energy splitting between polaritons of opposite polarizations. In combination with optical spin-orbit coupling inherent to semiconductor microstructures, the interaction induced Zeeman splitting results in emission of vortical beams with a well-defined chirality. Our experimental findings can be extended to lattices of coupled micropillars opening the possibility of controling optically the topological properties of polariton Chern insulators.
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Cited by in corpus (11)
- Quantum Vortex Formation in the "Rotating Bucket'' Experiment with Polariton Condensates
- Qubit Analog with Polariton Superfluid in an Annular Trap
- Spin-polarized antichiral exciton-polariton edge states
- Spin resonance induced by a mechanical rotation of a polariton condensate
- Polaronic polariton quasiparticles in a dark excitonic medium
- Spin polarization of exciton-polariton condensate in a photonic synthetic effective magnetic field
- Occupancy-driven Zeeman suppression and inversion in trapped polariton condensates
- Cavity-induced switching between Bell-state textures in a quantum dot
- Adiabatic theory of one-dimensional curved polariton waveguides
- Discrete chiral ballistic polariton laser
- Stability of vortices in exciton-polariton condensates with spin-orbital-angular-momentum coupling