Few Photons in microcavity
This activity lies at the crossroad between nanophotonics, quantum optics and nonlinear dynamics. It seeks to exploit large optical nonlinearities in III/V semiconductors, together with sub-micrometer dimensions (e.g. in photonic crystal cavities) and controlled radiation modes to reach nonlinear dynamical transitions – i.e. bifurcations—with a low photon number.
Our recent demonstrations of spontaneous symmetry breaking (SSB) with only ~150 intracavity photons and the far-from-equilibrium route for superthermal light in two coupled nanolasers are examples of the richness of this rapidly growing field of research. We pursue two main avenues: