Fig. 5
From: Heterogeneous integration for on-chip quantum photonic circuits with single quantum dot devices
Quantum dot-waveguide coupling. a Photoluminescence spectrum for a single QD inside a GaAs waveguide as in Fig. 3e, pumped with 1061 nm wavelength laser light. The PL is transferred to the bottom Si3N4 waveguide, and collected with a lensed optical fiber inside of a Liquid Helium flow cryostat (Supplementary Note 6). Sharp lines are exciton transitions from a single QD. Inset: Fit of PL peak at 1130.18 nm. b Second-order correlation as a function of time delay τ for the 1130.18 nm line. Circles mark experimental data, red line is a fit (Methods section and Supplementary Note 7). c Zoom-in of b near τ = 0. The blue curve and quoted g (2)(0) are obtained from the red fit by deconvolving the detection time-response. Uncertainties for g (2)(0) are 95% fit confidence intervals (two standard deviations). d Photoluminescence decay trace for the 1130.18 nm line. Gray dots are experimental data, the red line is a fit with a monoexponential function with lifetime τ sp. The uncertainty is obtained from the fit and corresponds to a single standard deviation
