Extended Data Fig. 9: The frequency-dependent response function.
From: Extremely efficient terahertz high-harmonic generation in graphene by hot Dirac fermions
a, The bare substrate described by the amplitude transmission (black line) and the substrate-induced phase shift (blue line). b, A simulated acceptance function of the 1.9-mm-thick ZnTe detection crystal; amplitude (black curve) and phase shift (blue curve). Arrows indicate relevant axis.
