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An integrated diamond nanophotonics platform for quantum-optical networks
A Sipahigil1, R E Evans1, D D Sukachev1,2,3
1Department of Physics, Harvard University, Cambridge, MA 02138, USA.
Science (New York, N.Y.)
|October 15, 2016
Summary
Researchers developed a scalable quantum nanophotonics platform using silicon-vacancy (SiV) centers in diamond. This enables single-photon level optical switching and a tunable single-photon source, advancing quantum network technologies.
Area of Science:
- Quantum optics
- Nanophotonics
- Solid-state quantum information
Background:
- Efficient photon-emitter interfaces are crucial for quantum networks.
- Optical nonlinearities at the single-photon level are essential for quantum information processing.
Purpose of the Study:
- To demonstrate an integrated, scalable quantum nanophotonics platform.
- To realize a single-center-controlled quantum-optical switch.
- To develop a tunable single-photon source using Raman transitions.
Main Methods:
- Coupling silicon-vacancy (SiV) color centers to diamond nanodevices.
- Integrating SiV centers into diamond photonic crystal cavities.
- Utilizing SiV metastable states for optical switching.
- Employing Raman transitions for photon generation in diamond waveguides.
Main Results:
- Demonstrated a quantum-optical switch controlled by a single SiV color center.
- Achieved optical switching at the single-photon level.
- Realized a tunable frequency and bandwidth single-photon source.
- Observed quantum interference from superradiant emission of entangled SiV centers.
Conclusions:
- The demonstrated platform is scalable for quantum nanophotonics applications.
- SiV centers in diamond provide a robust platform for quantum optical devices.
- The study showcases advancements in single-photon sources and quantum control.
