Fig. 4: Pump intensity scaling of bandgap modification and temporal dynamics of valley polarization.
From: Light-wave-controlled Haldane model in monolayer hexagonal boron nitride
a, Fourier amplitudes of the 3ω co-rotating signal as a function of pump intensity. Red corresponds to the signal at 120° period, green to that at 60° period. Lines present the theoretical simulations. Inset, Pump intensity scaling of the bandgap at the K (purple, solid) and K′ (green, dashed) valley for a trefoil orientation along θ = 120°. b, Fourier amplitude of the 3ω co-rotating signal at 120° period as a function of the pump–probe delay. The dashed line serves as guide for the eye. The error bars represent standard deviations for an ensemble of measurements. Expt., experimental.
