Polariton-electron scattering in a semiconductor microcavity
16 April 2002
The effect of a classical electron gas on the cavity polariton linewidths is studied experimentally at T = 80 K in a GaAs/AlAs microcavity with an embedded quantum well. The linewidth dependence on the electron density and on the cavity mode energy is explained by a theoretical model based on the asymmetric bare exciton line shape, due to electron-exciton scattering.