Coupling nitrogen vacancy centers in silicon carbide to nanophotonic resonators
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arXiv
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| Auteurs principaux: | , , , , , , , |
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| Format: | Preprint |
| Publié: |
2026
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| _version_ | 1866911467345805312 |
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| author | Zhigulin, Ivan Shimazaki, Konosuke Stephens, Samuel M. Gale, Angus Yamamura, Karin Tan, Hark Hoe Aharonovich, Igor Kianinia, Mehran |
| author_facet | Zhigulin, Ivan Shimazaki, Konosuke Stephens, Samuel M. Gale, Angus Yamamura, Karin Tan, Hark Hoe Aharonovich, Igor Kianinia, Mehran |
| contents | Silicon carbide (SiC) is a promising platform for scalable quantum technologies owing to its well-established, wafer-scale industrial processing. SiC also hosts a variety of optically active color centres including the nitrogen vacancy defect that has a spin-triplet ground state. However, strong phonon coupling in the infrared range limits photon extraction from these defects. Here, we use nanophotonic structures, specifically micro-pillar and micro-disk resonators, to enhance optical collection and spin-readout. The micro-pillar geometry yields a 4-fold increase in photon collection, accompanied by a 2.4-fold reduction in spectral noise in optically detected magnetic resonance measurements. Consequently, the magnetic field sensitivity is improved by 24%. The large mode volume of the micro-disk supports resonances spanning 1150-1250 nm, enabling broadband coupling to nitrogen vacancy emission lines. Our results demonstrate that fabrication of scalable photonic structures efficiently improves performance of silicon carbide color centers for integrated quantum light generation and sensing. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2602_21505 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Coupling nitrogen vacancy centers in silicon carbide to nanophotonic resonators Zhigulin, Ivan Shimazaki, Konosuke Stephens, Samuel M. Gale, Angus Yamamura, Karin Tan, Hark Hoe Aharonovich, Igor Kianinia, Mehran Optics Quantum Physics Silicon carbide (SiC) is a promising platform for scalable quantum technologies owing to its well-established, wafer-scale industrial processing. SiC also hosts a variety of optically active color centres including the nitrogen vacancy defect that has a spin-triplet ground state. However, strong phonon coupling in the infrared range limits photon extraction from these defects. Here, we use nanophotonic structures, specifically micro-pillar and micro-disk resonators, to enhance optical collection and spin-readout. The micro-pillar geometry yields a 4-fold increase in photon collection, accompanied by a 2.4-fold reduction in spectral noise in optically detected magnetic resonance measurements. Consequently, the magnetic field sensitivity is improved by 24%. The large mode volume of the micro-disk supports resonances spanning 1150-1250 nm, enabling broadband coupling to nitrogen vacancy emission lines. Our results demonstrate that fabrication of scalable photonic structures efficiently improves performance of silicon carbide color centers for integrated quantum light generation and sensing. |
| title | Coupling nitrogen vacancy centers in silicon carbide to nanophotonic resonators |
| topic | Optics Quantum Physics |
| url | https://arxiv.org/abs/2602.21505 |