Quantum Nonlinear Optics with a Germanium-Vacancy Color Center in a Nanoscale Diamond Waveguide
| Autor: | Bhaskar, Mihir K., Sukachev, Denis D., Sipahigil, Alp, Evans, Ruffin E., Burek, Michael J., Nguyen, Christian T., Rogers, Lachlan J., Siyushev, Petr, Metsch, Mathias H., Park, Hongkun, Jelezko, Fedor, Lončar, Marko, Lukin, Mikhail D. |
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| Rok vydání: | 2016 |
| Předmět: | |
| Zdroj: | Phys. Rev. Lett. 118, 223603 (2017) |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1103/PhysRevLett.118.223603 |
| Popis: | We demonstrate a quantum nanophotonics platform based on germanium-vacancy (GeV) color centers in fiber-coupled diamond nanophotonic waveguides. We show that GeV optical transitions have a high quantum efficiency and are nearly lifetime-broadened in such nanophotonic structures. These properties yield an efficient interface between waveguide photons and a single GeV without the use of a cavity or slow-light waveguide. As a result, a single GeV center reduces waveguide transmission by $18 \pm 1\%$ on resonance in a single pass. We use a nanophotonic interferometer to perform homodyne detection of GeV resonance fluorescence. By probing the photon statistics of the output field, we demonstrate that the GeV-waveguide system is nonlinear at the single-photon level. Comment: 5 pages and 5 figures. Supplemental Material, 4 pages and 1 figure, available as an ancillary file |
| Databáze: | arXiv |
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