Journal
PHYSICAL REVIEW APPLIED
Volume 8, Issue 2, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevApplied.8.024026
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Funding
- AFOSR Quantum Memories MURI [FA9550-12-1-0025]
- ONR MURI on Quantum Optomechanics [N00014-15-1-2761]
- NSF QOP [PHY-0969816]
- NSF CUA [PHY-1125846]
- NSF EFRI ACQUIRE [5710004174]
- STC Center for Integrated Quantum Materials (NSF) [DMR-1231319]
- Laboratory Directed Research and Development Program
- DOE [DE-AC04-94AL85000]
- National Science Foundation [ECS-0335765]
- Direct For Mathematical & Physical Scien
- Division Of Physics [1506284] Funding Source: National Science Foundation
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Color centers in diamond provide a promising platform for quantum optics in the solid state, with coherent optical transitions and long-lived electron and nuclear spins. Building upon recent demonstrations of nanophotonic waveguides and optical cavities in single-crystal diamond, we now demonstrate on-chip diamond nanophotonics with a high-efficiency fiber-optical interface achieving >90% power coupling at visible wavelengths. We use this approach to demonstrate a bright source of narrow-band single photons based on a silicon-vacancy color center embedded within a waveguide-coupled diamond photonic crystal cavity. Our fiber-coupled diamond quantum nanophotonic interface results in a high flux (approximately 38 kHz) of coherent single photons (near Fourier limited at <1-GHz bandwidth) into a single-mode fiber, enabling possibilities for realizing quantum networks that interface multiple emitters, both on chip and separated by long distances.
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