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Nonlinear Quantum Photonics with a Tin-Vacancy Center Coupled to a One-Dimensional Diamond Waveguide
Matteo Pasini1, Nina Codreanu1, Tim Turan1
1<a href="https://ror.org/04wf30j82">QuTech</a> and Kavli Institute of Nanoscience, <a href="https://ror.org/02e2c7k09">Delft University of Technology</a>, P.O. Box 5046, 2600 GA Delft, The Netherlands.
Physical Review Letters
|July 29, 2024
Summary
We integrated tin-vacancy color centers in diamond waveguides to study single-photon interactions. This work demonstrates control over light extinction and photon statistics in nanophotonic quantum devices.
Area of Science:
- Quantum optics
- Nanophotonics
- Solid-state quantum emitters
Background:
- Color centers in diamond are promising for quantum technologies.
- Nanophotonic devices enable precise control of light-matter interactions.
Purpose of the Study:
- To integrate tin-vacancy centers into diamond waveguides.
- To investigate single-photon interactions in reflection and transmission.
- To demonstrate tunable optical interference and control photon statistics.
Main Methods:
- Fabrication of diamond waveguides with integrated tin-vacancy centers.
- Single-photon spectroscopy in transmission and reflection configurations.
- Analysis of photon statistics and interference phenomena.
Main Results:
- Observed up to 25% single-emitter-induced extinction of transmitted light.
- Measured nonlinear effects on photon statistics.
- Demonstrated tunable interference between single photons and backscattered laser light.
- Showcased controlled switching between bunched and antibunched photon statistics.
Conclusions:
- Tin-vacancy centers in diamond waveguides offer a robust platform for quantum information processing.
- Precise control over light-matter interactions at the single-photon level is achievable.
- This system enables tunable quantum optical phenomena for advanced quantum applications.
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