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. 2024 Apr 18;15:3358. doi: 10.1038/s41467-024-47551-7

Fig. 3. Characteristics of exemplary fabricated quantum dot-circular Bragg grating (QD-CBGs) devices #1 and #2.

Fig. 3

a Microphotoluminescence (μPL) spectra for QDs in devices #1 and #2 overlaid on the cavity mode of device #2 (gray) and fitted with a Lorentzian profile (orange), stacked for clarity. b Time-resolved μPL (TRPL) traces for these QDs with the reference QD decay. c Power-dependent count rates registered on the superconducting nanowire single-photon detector (SNSPD). Horizontal lines mark the line μPL signal saturation level used for the determination of photon extraction efficiency.