Light slowing and all-optical time division multiplexing of hybrid four-wave mixing signal in nitrogen-vacancy center

Wang Ruimin^{1, †}, Ahmed Irfan^{2, 3}, Raza Faizan¹, Li Changbiao¹, Zhang Yanpeng^{1, 2, ‡}

(a) Energy level diagram of NV centers. (b) Schematic diagram of the experimental arrangement. D1, D2, D3: photomultiplier tubes, PBS: polarized beam splitter, L: lens. (c) The model of all-optical time division multiplexing.