Abstract

Controlled spontaneous emission in semiconductor microcavities has been widely studied to verify cavity quantum electrodynamics and improve the performance of optical devices.^1-3 The photon mode of the cavity and the electric mode of exciton are strongly coupled in the microcavities and cavity exciton-polariton interaction was demonstrated.⁴ In this paper, we report the observation of mode splitting in high-Q microcavities with 1, 5, and 13 QWs, respectively. The results clearly show enhanced mode splitting with the increase of the number of quantum wells, which can be explained by enhanced exciton-polariton interaction in the cavities.

© 1995 IEEE