Selective Temperature Sensing in Nanodiamonds Using Dressed States

Temperature sensing at the nanoscale is a significant experimental challenge. Here, an approach using dressed states is reported to make a leading quantum sensor – the nitrogen‐vacancy (NV) center in diamond – selectively sensitive to temperature, even in the presence of normally confounding magneti...

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Bibliographic Details
Published in:Advanced quantum technologies (Online) 2024-12, Vol.7 (12), p.n/a
Main Authors: Beaver, Nathaniel M., Stevenson, Paul
Format: Article
Language:English
Subjects:
color centers
Floquet states
NV center
quantum sensing
thermometry
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Summary:Temperature sensing at the nanoscale is a significant experimental challenge. Here, an approach using dressed states is reported to make a leading quantum sensor – the nitrogen‐vacancy (NV) center in diamond – selectively sensitive to temperature, even in the presence of normally confounding magnetic fields. Using an experimentally straightforward approach, the magnetic sensitivity of the NV center is suppressed by a factor of seven, while retaining full temperature sensitivity and narrowing the NV center linewidth. These results demonstrate the power of engineering the sensor Hamiltonian using external control fields to enable sensing with improved specificity to target signals. Engineering new quantum states using tailored drives enables a quantum sensor to selectively detect temperature changes, even in the presence of magnetic field changes which would normally dominate the response.
ISSN:2511-9044
2511-9044
DOI:10.1002/qute.202400271