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6CCVD Research

Nitrogen vacancy centers integrated magnetometer based on multi-frequency modulation measurement technique

At a Glance

Section titled ā€œAt a Glanceā€
MetadataDetails
Publication Date2024-12-27
JournalSensor Review
AuthorsXinhui He, Kun Huang, Guihao Ran, Xiaobiao Mao, Qin Hu
Citations1

Abstract

Section titled ā€œAbstractā€

Purpose This study aims to improve the sensitivity of magnetic detection. In this article, a multi-frequency modulation technique is used to increase the magnetic detection sensitivity of diamond nitrogen vacancy (NV) centers sensors. Design/methodology/approach In the field of magnetic detection, NV centers have corresponding advantages due to their unique long coherence property at room temperature. The important indicators for NV centers magnetometers are the magnetic detection sensitivity of the NV centers and the integration of the magnetometer. To solve this problem, the authors propose a multi-frequency modulated magnetic detection technique, using an integrated probe as well as a lock-in amplifier for the double enhancement of sensitivity as well as integration. Findings The following results can be obtained by processing and calculating the experimental data with an integrated lock-in amplifier circuit with an area of 27.50 cm 2 and a probe volume of 3.12 cm 3 . The multi-frequency modulation technique was used to increase the magnetic detection sensitivity of the NV centers from 8.59 nT/Hz1 / 2-2.42 nT/Hz1 / 2. Research limitations/implications The authors propose a signal modulation technique with an integrated design, which achieves an improvement in the sensitivity of the sensorā€™s magnetic detection through practical testing. Originality/value The authors propose a signal modulation technique with an integrated design, which achieves an improvement in the sensitivity of the sensorā€™s magnetic detection through practical testing. This technique provides new research solution for the subsequent improvement of the magnetic detection sensitivity.

Tech Support

Section titled ā€œTech Supportā€

Original Source

Section titled ā€œOriginal Sourceā€

References

Section titled ā€œReferencesā€
  1. 2018 - Probing condensed matter physics with magnetometry based on nitrogen-vacancy centres in diamond [Crossref]
  2. 2021 - High-SNR magnetic field sensing using portable confocal magnetometer probe based on nitrogen vacancy centers in diamond [Crossref]
  3. 2017 - Optimised frequency modulation for continuous-wave optical magnetic resonance sensing using nitrogen-vacancy ensembles [Crossref]
  4. 2013 - Measurement of the full stress tensor in a crystal using photoluminescence from point defects: the example of nitrogen vacancy centers in diamond
  5. 2019 - Nanotesla sensitivity magnetic field sensing using a compact diamond nitrogen-vacancy magnetometer
  6. 2023 - Light narrowing of magnetic resonances in ensembles of nitrogen-vacancy centers in diamond
  7. 2021 - A compact two-dimensional quantum magnetometer module based on the fixed-frequency optical detection of magnetic resonance using nitrogen vacancy centers [Crossref]
  8. 2023 - An integrated magnetometer module with MFCs based on diamond NV centers [Crossref]
  9. 2019 - Polarization-assisted vector magnetometry with no bias field using an ensemble of nitrogen-vacancy centers in diamond
  10. 2024 - Compact and fully integrated LED quantum sensor based on NV centers in diamond [Crossref]

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