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- Title
Nanophotonic quantum sensing with engineered spin-optic coupling.
- Authors
Kim, Laura; Choi, Hyeongrak; Trusheim, Matthew E.; Wang, Hanfeng; Englund, Dirk R.
- Abstract
Nitrogen vacancy centers in diamond provide a spin-based qubit system with long coherence time even at room temperature, making them suitable ambient-condition quantum sensors for quantities including electromagnetic fields, temperature, and rotation. The optically addressable level structures of NV spins allow transduction of spin information onto light-field intensity. The sub-optimal readout fidelity of conventional fluorescence measurement remains a significant drawback for room-temperature ensemble sensing. Here, we discuss nanophotonic interfaces that provide opportunities to achieve near-unity readout fidelity based on IR absorption via resonantly enhanced spin-optic coupling. Spin-coupled resonant nanophotonic devices are projected to particularly benefit applications that utilize micro- to nanoscale sensing volume and to outperform present methods in their volume-normalized sensitivity.
- Subjects
ELECTROMAGNETIC fields; QUANTUM coherence; SENSES
- Publication
Nanophotonics (21928606), 2023, Vol 12, Issue 3, p441
- ISSN
2192-8606
- Publication type
Article
- DOI
10.1515/nanoph-2022-0682