Fig. 4

a Time-resolved measurements on (white circle) and off (black circle) resonant of the X line in micropillar, which reveal a Purcell factor of F _p = 1.9. b, d Second-order correlation function g ⁽²⁾(τ) for the X line under cw excitation and 80 MHz pulse laser excitation at saturated pump power. c, e Pump power-dependent PL intensity of exciton peak at 1325.6 nm under cw and pulse excitation, respectively. The black circles in c and e denote the count rate recorded at the InGaAs detectors