Controlling the interactions between polaritons and molecular vibrations in strongly coupled organic semiconductor microcavities

We study the microscopic processes that determine the dynamics of polaritons in strongly-coupled organic-semiconductor microcavities. Using a quantum kinetic theory, we show that resonant couplings and interactions between cavity photons, excitons, and localized molecular vibrations strongly affect the polariton resonance line shapes in J-aggregate microcavities. We use our many-body calculation to reproduce the measured polariton emission at exciton-photon resonance which is determined as a function of the Rabi-splitting energy.