Fig. 3: Radiative pumping and polariton-assisted photon recycling mechanisms.
From: Radiative pumping vs vibrational relaxation of molecular polaritons: a bosonic mapping approach
a Radiative pumping: emission from a Stokes-shifted molecule \(| ss\left.\right\rangle\) through a polariton state \(| \xi \left.\right\rangle\) (typically the LP). b Polariton-assisted photon recycling: light emitted from dark states is reabsorbed before it leaks out of the cavity via collective strong light–matter coupling (\(g\sqrt{N} > \kappa\)). This excitation creates a new Stokes-shifted molecule \(| s{s}^{{\prime} }\left.\right\rangle\) that can subsequently re-emit. This occurs if the bare emission and absorption spectra of the material overlap.
