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| Autori principali: | , , , , , , , |
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| Natura: | Preprint |
| Pubblicazione: |
2025
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| Soggetti: | |
| Accesso online: | https://arxiv.org/abs/2511.21127 |
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| _version_ | 1866908676720164864 |
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| author | Lee, Hyeongwoo Moon, Taeyoung Oh, Hyeonmin Park, Kijeong Joo, Huitae Toth, Milos Aharonovich, Igor Park, Kyoung-Duck |
| author_facet | Lee, Hyeongwoo Moon, Taeyoung Oh, Hyeonmin Park, Kijeong Joo, Huitae Toth, Milos Aharonovich, Igor Park, Kyoung-Duck |
| contents | Atom-like defects in hexagonal boron nitride (hBN) provide room-temperature single-photon emission and coherent spin states, making them attractive for quantum-computing and -sensing applications. However, their random spatial and spectral characteristics hamper deterministic coupling with nano-optical cavities, limiting their use as bright single-photon sources and sensitive quantum sensors. Here, we present tip-enhanced quantum-sensing spectroscopy of single-photon emitters in hBN. Through precise spatial positioning of individual emitters within tip-cavities with different plasmon resonances, we adaptively control the enhancement rates of both excitation and emission, as well as the single-photon purity. In this way, optimal selection of their relative contributions can effectively reconfigure solid-state single-photon sources, with simultaneous nano-spectroscopic space- and time-resolved analyses. Furthermore, we demonstrate tip-enhanced quantum-sensing with single spin defects through optically detected magnetic resonance (ODMR) experiments in tip-coupled hBN nanoflakes. Our approach provides a unique pathway toward highly-sensitive and deterministic quantum-sensing with room-temperature single-photon emitters. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2511_21127 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Tip-enhanced quantum-sensing spectroscopy for bright and reconfigurable solid-state single-photon emitters Lee, Hyeongwoo Moon, Taeyoung Oh, Hyeonmin Park, Kijeong Joo, Huitae Toth, Milos Aharonovich, Igor Park, Kyoung-Duck Quantum Physics Atom-like defects in hexagonal boron nitride (hBN) provide room-temperature single-photon emission and coherent spin states, making them attractive for quantum-computing and -sensing applications. However, their random spatial and spectral characteristics hamper deterministic coupling with nano-optical cavities, limiting their use as bright single-photon sources and sensitive quantum sensors. Here, we present tip-enhanced quantum-sensing spectroscopy of single-photon emitters in hBN. Through precise spatial positioning of individual emitters within tip-cavities with different plasmon resonances, we adaptively control the enhancement rates of both excitation and emission, as well as the single-photon purity. In this way, optimal selection of their relative contributions can effectively reconfigure solid-state single-photon sources, with simultaneous nano-spectroscopic space- and time-resolved analyses. Furthermore, we demonstrate tip-enhanced quantum-sensing with single spin defects through optically detected magnetic resonance (ODMR) experiments in tip-coupled hBN nanoflakes. Our approach provides a unique pathway toward highly-sensitive and deterministic quantum-sensing with room-temperature single-photon emitters. |
| title | Tip-enhanced quantum-sensing spectroscopy for bright and reconfigurable solid-state single-photon emitters |
| topic | Quantum Physics |
| url | https://arxiv.org/abs/2511.21127 |