Fig. 3: g⁽²⁾(τ) traces of QD_A recorded at 5 K as a function of excitation power density (connected blue diamonds) and convoluted fits (red lines).

The channel resolution is fixed to 100 ps/channel at 40, 200 and 400 kW cm⁻². Given the smaller number of total coincidences measured at 80 kW cm⁻², the corresponding data are shown with a 200 ps/channel resolution. The exciton decay time being in theory power-independent, its value is extracted by fitting all traces with a shared τ_decay value. The inset shows the evolution of the fitting parameter µ upon increasing power. The data (red circles) are fitted using Eq. 2 (grey line,) which yields µ_sat = 2.9. All uncertainties are obtained in the simplified framework described in the text and indicate the robustness of the fit. The full collected data span a range of ±130 ns around 0