Superradiance of 2D Frenkel exciton-polaritons: mixing of molecular configurations and resonance interaction with the substrate Original Research Article

Both a microscopic and a phenomenological theory of 2D Frenkel exciton-polaritons are developed taking into account the mixing of molecular configurations. The spectrum and radiative width of the polaritons are calculated taking into account the resonance interactions with a substrate of variable thickness. The results of the calculations for the radiative width are compared with experimental data for 2D Frenkel excitons, localized in the first and second outermost molecular monolayers of anthracene crystals.