dω J(ω)/ω for all molecules. In this work, we use the following parameters: excitation energy ω x = 2.0 eV, the bath reorganization energy λ = 30 meV, and the bath characteristic frequency γ = 24.8 meV, which are the typical parameters for CdSe Nanoplatelets (see schematic illustration in Fig. ) which has been shown to couple strongly to a dielectric optical cavity. Further, Ĥc describes a single quantized radiation mode inside the cavity