In the model presented above, we assumed an idealized geometry in which the axis of light propagation is perpendicular to the plane of the circular chromophore. To explore the effects of the relative alignments of the light pulse and the circular chromophore, we consider an expanded model in which the linear chromophore is tilted out of the xy-plane by an angle ϕ, as depicted in Fig. . With this model, derived in full detail in the SI, the evolution of the excitonic wavefunction is given by the following system of equations.