Abstract
We analyse the formation of two-dimensional biexcitons and their luminescence spectra in semiconductor microcavities containing a few resonating quantum wells. A general formalism is presented for the treatment of excitons, photon modes and biexcitons in resonating microcavities, including the exciton dark states decoupled from the cavity mode. Results for the biexciton binding energy, radius and damping are discussed in the physically relevant cases. The cavity biexciton photoluminescence spectra are also investigated; they are found to be qualitatively different depending on the relative magnitudes of the exciton–cavity detuning, the biexciton binding energy, the exciton–photon coupling and the damping.
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