Fig. 4: Scaling of growth rate r1.
From: Large scale purification in semiconductors using Rydberg excitons

a Pump-power series of r1 in time-resolved relative transmission in a pulsed pump-probe experiment for probing at nprobe = 9 and varying npump from 10 to 17. The probe intensity amounts to 7.5 mW cm−2. Solid lines are linear fits to the linear regions. The data points and the lines are offset vertically and plotted on a double-logarithmic scale for clarity. All curves are corrected by a constant offset of 1.05 μs−1. b The red lines shows a scaling with n3.5 according to the model. For large n above 12, the data fits to this prediction well. For lower n the scaling becomes steeper. A fit to the whole range of principal quantum numbers yields n3.96±0.26. The error bars are obtained by varying the range of fitted data points in panel a by ± 1. The inset shows g0 estimated from the linear absorption spectrum. The variation of g0 is below 10% between n = 10 and 16.