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| Main Authors: | , , , , , , , , |
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| Format: | Preprint |
| Published: |
2025
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2502.07632 |
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| _version_ | 1866915146201300992 |
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| author | Wen, Shuyu Pieplow, Gregor Yang, Junchun Jamshidi, Kambiz Helm, Manfred Luo, Jun-Wei Schröder, Tim Zhou, Shengqiang Berencén, Yonder |
| author_facet | Wen, Shuyu Pieplow, Gregor Yang, Junchun Jamshidi, Kambiz Helm, Manfred Luo, Jun-Wei Schröder, Tim Zhou, Shengqiang Berencén, Yonder |
| contents | Silicon-based quantum technologies have gained increasing attention due to their potential for large-scale photonic integration, long spin coherence times, and compatibility with CMOS fabrication. Efficient spin-photon interfaces are crucial for quantum networks, enabling entanglement distribution and information transfer over long distances. While several optically active quantum emitters in silicon have been investigated, no spin-active defect with optical transitions in the telecom L-band-a key wavelength range for low-loss fiber-based communication-has been experimentally demonstrated. Here, we demonstrate the optical detection of spin states in the C center, a carbon-oxygen defect in silicon that exhibits a zero-phonon line at 1571 nm. By combining optical excitation with microwave driving, we achieve optically detected magnetic resonance, enabling spin-state readout via telecom-band optical transitions. These findings provide experimental validation of recent theoretical predictions and mark a significant step toward integrating spin-based quantum functionalities into silicon photonic platforms, paving the way for scalable quantum communication and memory applications in the telecom L-band. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2502_07632 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Optical spin readout of a silicon color center in the telecom L-band Wen, Shuyu Pieplow, Gregor Yang, Junchun Jamshidi, Kambiz Helm, Manfred Luo, Jun-Wei Schröder, Tim Zhou, Shengqiang Berencén, Yonder Quantum Physics Silicon-based quantum technologies have gained increasing attention due to their potential for large-scale photonic integration, long spin coherence times, and compatibility with CMOS fabrication. Efficient spin-photon interfaces are crucial for quantum networks, enabling entanglement distribution and information transfer over long distances. While several optically active quantum emitters in silicon have been investigated, no spin-active defect with optical transitions in the telecom L-band-a key wavelength range for low-loss fiber-based communication-has been experimentally demonstrated. Here, we demonstrate the optical detection of spin states in the C center, a carbon-oxygen defect in silicon that exhibits a zero-phonon line at 1571 nm. By combining optical excitation with microwave driving, we achieve optically detected magnetic resonance, enabling spin-state readout via telecom-band optical transitions. These findings provide experimental validation of recent theoretical predictions and mark a significant step toward integrating spin-based quantum functionalities into silicon photonic platforms, paving the way for scalable quantum communication and memory applications in the telecom L-band. |
| title | Optical spin readout of a silicon color center in the telecom L-band |
| topic | Quantum Physics |
| url | https://arxiv.org/abs/2502.07632 |