h ω = 4.75 eV and (bottom) hω = 4.75 -0.45i eV with λ z = 0.0125 atomic units. We see evidence of strong coupling via splitting of the surfaces where the |X, 1 and |A, 0 states are resonant, when the photon energy is pure real, and we see the splitting vanish when the imaginary part of the photon energy is large compared to the interaction energy.