We analyze the optical spectra of photonic structures composed of hBN films with embedded WS2 excitonic monolayers, designed to maximize light–matter interaction and Rabi splittings. These structures are enclosed within SiO2 layers and probed in an attenuated total reflection configuration using Si prisms. The optical spectra show resonances due to strong exciton–guided mode interactions and the prism dispersion. For a straightforward structure made of five identical stacked cells with a total w