Three coupled oscillators: normal mode coupling in a microcavity with two different quantum wells

Abstract

GaAs/AlAs microcavities containing two different quantum wells have been grown and their normal mode coupling studied. We present experimental results that exhibit three-dip reflectivity spectra characteristic of three coupled oscillators. A theoretical model based on a nonlocal dielectric response and a transfer matrix method is used to model the microcavities and yields good agreement with experiment.