Fig. 3: Scaling of decay rate r2.
From: Large scale purification in semiconductors using Rydberg excitons
a Time traces of the relative transmission for npump = 16 and nprobe = 9. With increasing probe powers the decay of purification becomes significantly faster. b Purification decay rate r2 against probe beam intensity for npump = 16 and nprobe = 10. At low probe intensities, a linear trend arises which saturates at higher intensities. The solid line denotes a linear fit to the low-intensity region. c Probe-power series of r2 for pumping at npump = 16 and varying nprobe from 5 to 15. The pump intensity is adjusted such that the highest possible purification is reached for each nprobe. Solid lines are linear fits to the linear regions. The data points and lines are offset vertically and plotted on a double-logarithmic scale for clarity. A small offset of r2 ≈ 0.025 μs−1 is subtracted from all curves. d Power law fit to the slopes of the purification rate r2. The error bars are obtained by varying the range of fitted data points in panel (c) by ± 1. For nprobe > 6, the scaling is close to n6.5.
