excitonfotonsystem
An exciton-photon system is a hybrid quantum system in which excitons—bound electron-hole pairs in a semiconductor or organic material—strongly couple to photons confined in a photonic structure, such as an optical microcavity, waveguide, or photonic crystal cavity. When the light-matter coupling strength exceeds the loss rates of both constituents, the system enters the strong coupling regime, and the bare exciton and photon states hybridize into new eigenstates known as exciton polaritons. The energy spectrum exhibits an anticrossing with a Rabi splitting that scales with the coupling strength, reflecting the mixed light and matter character of the modes.
Realizations span inorganic and organic platforms, including quantum wells embedded in distributed Bragg reflector cavities, organic
Dynamics and phenomena include nonlinear polariton interactions and the possibility of nonequilibrium condensates or superfluid-like behavior