Stimulated photon emission and two-photon Raman scattering in a coupled-cavity QED system

摘要

We study the scattering problem of photon and polariton in a one-dimensionalcoupled-cavity system. Analytical approximate analysis and numerical simulationshow that a photon can stimulate the photon emission from a polariton throughpolariton-photon collisions. This observation opens the possibility ofphoton-stimulated transition from insulating to radiative phase in acoupled-cavity QED system. Inversely, we also find that a polariton can begenerated by a two-photon Raman scattering process. This paves the way towardssingle photon storage by the aid of atom-cavity interaction.