Fig. 3

Photons bunching of a single GQD. a, b g⁽²⁾ functions of a single GQD, for two different excitation powers, 2 μW (red square) and 10 μW (blue diamond). a Zoom on short delays; b Full timescale intensity correlation. The solid line is a fit to the function \(1 - (1 + a)e^{ - \lambda _1|\tau |}\) + \(ae^{ - \lambda _2|\tau |}\), convolved by the time response of the detector. The three-level system used as a model is shown