Fig. 4. Coherent and incoherent exciton dynamics.
a Calculated ΔR/R dynamics at the energy of the A1s resonance considering only the coherent exciton contribution (shaded areas), only the incoherent exciton contribution (dashed lines) and both the contributions (continuous lines) for low (orange traces) and high (blue traces) pump photon energy, i.e., 2.29 and 2.75 eV, respectively. b The same for the dynamics at the energy of the B1s resonance.