Fig. 1 | npj Quantum Information

Fig. 1

From: Quantum dot single-photon sources with ultra-low multi-photon probability

Fig. 1The alternative text for this image may have been generated using AI.

Two-photon excitation scheme. a Gate voltage dependent photoluminescence. b Schematic illustration of resonant excitation of a 2LS and two-photon excitation of 2X. Solid arrows represent laser drive, while dotted arrows represent spontaneous emission. c Example spectrum for two-photon excitation of 2X at 912.34 nm. d Rabi oscillations between \(\left| 0 \right\rangle\) and \(\left| {2X} \right\rangle\), measured from 2X luminescence

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