Stimulated Secondary Emission from Semiconductor Microcavities

Abstract

We find strong influence of final-state stimulation on the time-resolved light emission dynamics from semiconductor microcavities after pulsed excitation allowing angle-resonant polariton-polariton scattering on the lower-polariton branch. The polariton dynamics can be controlled by injection of final-state polaritons at densities below a polariton saturation density of $5\times {10}^8{\mathrm{cm}}^{-2\mathrm{}}$. A bosonic enhancement factor in the dynamics of up to 700 is evaluated.