Polarization mixing in hybrid organic–inorganic microcavities

We use a microscopic theory to study hybrid organic–inorganic microcavities in the strong coupling regime. The optically resonant materials are an anisotropic crystalline organic mono-layer and a semiconductor quantum-well, which are coupled only via the cavity photons. The cavity eigenmodes are the hybrid Frenkel–Wannier–Mott exciton-polaritons. Using the quasi-mode approach, we calculate the hybrid cavity linear optical spectra, i.e. the transmission, reflection, and absorption spectra. In hybrid microcavities the anisotropic organic materials induce a mixing between the TE and TM cavity photon polarizations, and a mixing between the transverse and longitudinal heavy-hole (HH) Wannier–Mott excitons, which is in contrast to the case of ordinary semiconductor microcavities.