Nanophotonic quantum sensing with engineered spin‐optic coupling

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Author(s)
Kim, Laura
•
Choi, Hyeongrak
•
Trusheim, Matthew E
•
Wang, Hanfeng
•
Englund, Dirk R
Date Issued
January 9, 2023
Journal
Nanophotonics
Publisher
Wiley
Citation
Kim, L., Choi, H., Trusheim, M.E., Wang, H. and Englund, D.R. (2023), Nanophotonic quantum sensing with engineered spin-optic coupling. Nanophotonics, 12: 441-449.
Version
Final published version
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
IR absorption readout
magnetic imaging
magnetometry
NV diamond
quantum diamond microscopy
quantum sensing
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DOI of Published Version
https://doi.org/10.1515/nanoph-2022-0682
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