Storage Enhanced Nonlinearities in a Cold Atomic Rydberg Ensemble
Storage Enhanced Nonlinearities in a Cold Atomic Rydberg Ensemble
The combination of electromagnetically induced transparency with the nonlinear interaction between Rydberg atoms provides an effective interaction between photons. In this Letter, we investigate the storage of optical pulses as collective Rydberg atomic excitations in a cold atomic ensemble. By measuring the dynamics of the stored Rydberg polaritons, we experimentally …