Fig. 4: Single photon (de)multiplexing.
From: On-chip generation and dynamic piezo-optomechanical rotation of single photons
a Schematic representation of the experimental configuration: Both IDTs are active. The optical transition of a single QD in Input WG-B is modulated by IDTSM while the response of the MZI is modulated by IDTPM as photons pass through. b Upper panel: Acoustic phase-dependent spectral modulation of the QD. Lower panel: intensity modulations at Output WG-B at four distinct relative phases ΔφSAW. c–f Acoustic phase-dependent emission spectra of the QD measured from Output WG-B for the four distinct relative phases marked in (b). g Programmable spectral demultiplexing of the maximum (λmax, red symbols), center (λ0, black symbols) and minimum (λmin, blue symbols) of the spectral modulation as a function of ΔφSAW. Colored lines are best fits to the data.
