Competition between horizontal and vertical polariton lasing in planar microcavities

Abstract

Planar microcavities filled with active materials containing excitonic resonances host radiative exciton-polariton (polariton) modes with in-plane wave vectors within the light cone. They also host at least one mode guided in the cavity plane by total internal reflection and which is not radiatively coupled to the vacuum modes except through defects or sample edges. We show that polariton lasing mediated by polariton stimulated scattering can occur concomitantly in both types of modes in a microcavity. By adjusting the detuning between the exciton and the radiative photon mode one can favor polariton lasing either in the radiative or in the guided modes. Our results suggest that the competition between these two types of polariton lasing modes may have played a role in many previous observations of polariton lasing and polariton Bose Einstein condensation.

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Cited by in corpus (5)

• Fabrication of Nanostructured GaAs/AlGaAs Waveguide for Low-Density Polariton Condensation from a Bound State in the Continuum
• Strong coupling of exciton-polaritons in a bulk GaN planar waveguide: quantifiying the coupling strength
• Ridge polariton laser: different from a semiconductor edge-emitting laser
• Mode switching dynamics in organic polariton lasing
• Domain-wall topology induced by spontaneous symmetry breaking in polariton graphene