Experimental evidence of stimulated scattering of excitons into microcavity polaritons

Abstract

We present experimental evidence for the final state stimulation of the exciton-exciton scattering rate into the exciton-polariton state in a semiconductor microcavity. We have studied the exciton density, polariton density, and time delay dependence of the stimulated emission, and have found the behavior to be in agreement with a prediction from a rate equation model of the dynamics.