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(a) SSPD quantum efficiency and dark count rate plotted as a function of normalized current at . Inset: dark count rate plotted as a function of normalized current for a different SSPD system with/without (filled/empty circles) cold filter. (b) Comparison between SSPD and APD performances.
Measurement of the jitter of the detectors. Dotted line: laser pulse measured on a sampling oscilloscope with bandwidth. Continuous line: temporal response of the APD . Dashed line: temporal response of the SSPD .
(a) PL spectrum at from a single quantum dot showing emission of the exciton (X), biexciton (BX), and charged exciton . (b) Photon autocorrelation measurement on the X line under pulsed excitation obtained with an integration time of and a time bin of . Solid (red) line is a sum of Gaussians with and an offset of three coincidences.
(a) Measurement of under resonant excitation, with a time bin of . (b) Blow-up at short time delays demonstrating antibunching. Inset: PL spectrum of the positive trion under resonant excitation . Solid (red) line in (a) and (b) is the fit of the correlation function .
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