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Scalable Quantum Photonics with Single Color Centers in Silicon Carbide
Open accessAbstract
Silicon carbide is a promising platform for single photon sources, quantum bits (qubits), and nanoscale sensors based on individual color centers. Toward this goal, we develop a scalable array of nanopillars incorporating single silicon vacancy centers in 4H-SiC, readily available for efficient interfacing with free-space objective and lensed-fibers. A commercially obtained substrate is irradiated with 2 MeV electron beams to create vacancies. Subsequent lithographic process forms 800 nm tall nanopillars with 400-1400 nm diameters. We obtain high collection efficiency of up to 22 kcounts/s optical saturation rates from a single silicon vacancy center while preserving the single photon emission and the optically induced electron-spin polarization properties. Our study demonstrates silicon carbide as a readily available platform for scalable quantum photonics architecture relying on single photon sources and qubits.
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Placing SiV into a nanopillar has shown increased light collection, and integration with nanocavities has resulted in Purcell enhancement of light emitted into the zero-phonon line.
“Placing SiV into a nanopillar [123] has shown increased light collection needed for more precise optical readout of a spin-qubit, while its integration with nanocavities has resulted in Purcell enhancement of light emitted into the zero-phonon line (ZPL) [124,125] needed for high fidelity indistinguishable-photon operation in quantum applications.”
From 2022 Roadmap on integrated quantum photonics (2022) · cites this paper as [123]
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Material platforms for spin-based photonic quantum technologies
Atatüre, M., Englund, D., Vamivakas, N., Lee, S.-Y., & Wrachtrup, J. (2018) · Nature Reviews Materials · doi:10.1038/s41578-018-0008-9 · Cited by 766
Self-citation4H-silicon-carbide-on-insulator for integrated quantum and nonlinear photonics
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Self-citationCoherent control of nitrogen-vacancy center spins in silicon carbide at room temperature
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2022 Roadmap on integrated quantum photonics
Moody, G., Sorger, V. J., Blumenthal, D. J., Juodawlkis, P. W., Loh, W., Sorace-Agaskar, C., Jones, A. E., Balram, K. C., Matthews, J. C. F., Laing, A., et al. (2022) · Journal of Physics: Photonics · doi:10.1088/2515-7647/ac1ef4 · Cited by 6
“Integrated qubits subfigure was adapted with permission from [123], © 2020 American Chemical Society.”
BackgroundMethodSelf-citation
Metadata
- Authors
- Radulaski, M., Widmann, M., Niethammer, M., Zhang, J. L., Lee, S.-Y., Rendler, T., Lagoudakis, K. G., Son, N. T., Janzén, E., Ohshima, T., Wrachtrup, J., & Vučković, J.
- Affiliations
- University of Stuttgart (DE)
- Department of Physics, Chemistry, and Biology, Linköping University, SE-58183 Linköping, Sweden
- Linköping University (SE)
- National Institutes for Quantum Science and Technology (JP)
- E. L. Ginzton Laboratory, Stanford University, Stanford, California 94305, United States
- Corresponding author
- Radulaski, Marina
- Widmann, Matthias
- ORCID
- Venue
- Nano Letters
- Publisher
- American Chemical Society (ACS)
- Published
- 2017-02-24
- Volume
- 17
- Issue
- 3
- Pages
- 1782-1786
- ISSN
- 1530-6984 (ISSN-L)
- 1530-6992
- OpenAlex
- W2566536560
- Cited by
- 202
- References
- 27
- Citations by year
- 2026: 20 · 2025: 24 · 2024: 21 · 2023: 25 · 2022: 18 · 2021: 21 · 2020: 25 · 2019: 21 · 2018: 21 · 2017: 6
- FWCI
- 8.42
- Type
- journal article
- Language
- en
- Open access
- Locations
- Nano Letters (publishedVersion)
- PubMed (publishedVersion)
- Strathprints: The University of Strathclyde institutional repository (University of Strathclyde) (acceptedVersion)
- arXiv (Cornell University) (submittedVersion)
- Institutional Repositories DataBase (IRDB) (submittedVersion, cc-by-nc-nd)
- arXiv (Cornell University) (cc-by)
- Funders
- Bundesministerium f??r Bildung und Forschung (ERA.Net RUS Plus Project DIABASE)
- U.S. Department of Defense (W911NF1310309)
- Japan Society for the Promotion of Science (26286047)
- National Science Foundation (DMR 1406028)
- Topics
- Physical Sciences › Materials Science › Materials Chemistry › Diamond and Carbon-based Materials Research
- Physical Sciences › Engineering › Electrical and Electronic Engineering › Silicon Carbide Semiconductor Technologies
- Physical Sciences › Materials Science › Materials Chemistry › Silicon Nanostructures and Photoluminescence
- Keywords
- silicon carbide, color centers, silicon-vacancy centers, 4H-SiC, single-photon sources, nanopillar arrays, electron spin polarization, electron irradiation, lensed fiber, quantum photonics, qubits, nanosensors
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