Fig. 5: Cavity potential energy surface of photoisomerization reaction.
Represent modified polaritonic surfaces for {g/ωR = a) 0.0543, b) 0.1086, c) 0.1257} that result in the experimentally observed Rabi splitting ranging from weak (a; 1 w% azopyrrole; at equilibrium), over strong (b; 1 w% azopyrrole), to ultra-strong (c; 1.5w% azopyrrole) for a frequency of the cavity mode chosen to be in resonance with the theoretically predicted absorption energy S0 to S1 of 427 nm. d–f Transition-state barriers for different reaction paths on the S1 (lower polariton) surface of the combined system with the absorption spectrum of the bare system as a gray line in the background. Higher transparency of a data point corresponds to a smaller matter contribution, i.e., a higher photonic fraction of the polariton.
