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Temperature Selective Thermometry with Sub‐Microsecond Time Resolution Using Dressed‐Spin States in Diamond

Temperature Selective Thermometry with Sub‐Microsecond Time Resolution Using Dressed‐Spin States... Versatile nanoscale sensors that are susceptible to changes in a variety of physical quantities often exhibit limited selectivity. This paper reports a novel scheme based on microwave‐dressed spin states for optically probed nanoscale temperature detection using diamond quantum sensors, which provides selective sensitivity to temperature changes. By combining this scheme with a continuous pump–probe scheme using ensemble nitrogen‐vacancy centers in nanodiamonds, a sub‐microsecond temporal resolution with thermal sensitivity of 3.7 K·Hz−1/2 that is insensitive to variations in external magnetic fields on the order of 2 G is demonstrated. The presented results are favorable for the practical application of time‐resolved nanoscale quantum sensing, where temperature imaging is required under fluctuating magnetic fields. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Advanced Quantum Technologies Wiley

Temperature Selective Thermometry with Sub‐Microsecond Time Resolution Using Dressed‐Spin States in Diamond

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Publisher
Wiley
Copyright
© 2021 Wiley‐VCH GmbH
eISSN
2511-9044
DOI
10.1002/qute.202100084
Publisher site
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Abstract

Versatile nanoscale sensors that are susceptible to changes in a variety of physical quantities often exhibit limited selectivity. This paper reports a novel scheme based on microwave‐dressed spin states for optically probed nanoscale temperature detection using diamond quantum sensors, which provides selective sensitivity to temperature changes. By combining this scheme with a continuous pump–probe scheme using ensemble nitrogen‐vacancy centers in nanodiamonds, a sub‐microsecond temporal resolution with thermal sensitivity of 3.7 K·Hz−1/2 that is insensitive to variations in external magnetic fields on the order of 2 G is demonstrated. The presented results are favorable for the practical application of time‐resolved nanoscale quantum sensing, where temperature imaging is required under fluctuating magnetic fields.

Journal

Advanced Quantum Technologies – Wiley

Published: Nov 1, 2021

Keywords: dressed state; nanodiamond; nanothermometry; NV center

References