Nanoscale Engineering and Optical Addressing of Single Spins in Diamond

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Sébastien Pezzagna1,*, Dominik Wildanger2, Paul Mazarov3, Andreas D. Wieck3, Yanko Sarov4, Ivo Rangelow4, Boris Naydenov5, Fedor Jelezko5, Stefan W. Hell2, Jan Meijer1


Small 6, 2117-2121 (19)

The artificial creation of shallow nitrogen-vacancy (NV) centres in diamond with 25 nm lateral resolution is performed by collimated implantation of low-energy nitrogen ions. The electron spin associated to this defect is the most promising qubit for a scalable quantum computer working at room temperature. Individual optical addressing of two single centres separated by only 16 nm is demonstrated with stimulated emission depletion (STED) microscopy.