Figure 3
Performance of cavity coupled QD single-photon source.
(a) Integrated PL intensity of a cavity-coupled QD compared to that of the exciton (X) and biexciton (XX) of a typical QD in the bulk as a function of pulsed-laser excitation power. (b) Time-resolved measurements of the lifetime measured for the bulk neutral exciton and cavity-coupled QDs shown in (a). (c) Photon coincidence histogram recorded from the cavity-coupled QD. (d) Normalised area of central peak of second order correlation function, g(2)(0), as a function of excitation laser power. The dashed line shows the limit of single-photon emission at g(2)(0) = 0.5.
