Very strong coupling in GaAs based optical microcavities

Abstract

We show that when following a simple cavity design metric, a quantum well exciton-microcavity photon coupling constant can be larger than the exciton binding energy in GaAs based optical microcavities. Such a very strong coupling significantly reduces the relative electron-hole motion and makes the polaritons robust against phonon collisions. The corresponding polariton dissociation and saturation boundaries on the phase diagram are much improved, and our calculations suggest the possibility of constructing a room temperature, high power exciton-polariton laser without resorting to wide bandgap semiconductors.

4 pages, 7 figures

References in corpus (6)

• Quantised Vortices in an Exciton-Polariton Fluid
• Quantum-fluid dynamics of microcavity polaritons
• Spontaneous Polarisation Build up in a Room Temperature Polariton Laser
• Single vortex-antivortex pair in an exciton polariton condensate
• Ultra-low threshold polariton lasing in photonic crystal cavities
• Strong Optical Confinement between Non-periodic Flat Dielectric Gratings

Cited by in corpus (4)

• Experimental verification of the very strong coupling regime in a GaAs quantum well microcavity
• Microscopic description of exciton-polaritons in microcavities
• Perspective on real-space nanophotonic field manipulation using non-perturbative light-matter coupling
• Perspectives for gapped bilayer graphene polaritonics