1Univ. of Southern Denmark (Denmark) 2Univ. of Electronic Science and Technology of China (China) 3Nanjing Univ. of Aeronautics and Astronautics (China)
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To achieve quantum computing on chip, the chip-scale photonic quantum technologies indispensably request efficiently coupling and guiding spontaneous emission from solid-state quantum emitters (QEs) as central blocks for high-quality single-photon sources. Here, we experimentally demonstrate a deterministically positioned nano-diamond (ND) as QE which is manipulated on chip via Archimedean spiral gratings to spontaneously trigger single photons carrying spin and orbital angular momentum superposition states.
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