Abstract

Semiconductor microcavities provide the interesting opportunity of studying light-matter interaction in the strong coupling limit.¹ In such a nonperturbative regime, the elementary excitations are the so-called polaritons which are a mixing of cavity photons and quantum well excitons. The cavity polaritons are rather peculiar quasi-particles because they share at the same time the sharp energy dispersion inherited from the photon fraction² and the pronounced nonlinear behavior due to the exciton-exciton interaction.³

© 2002 Optical Society of America