Evidence map›Paper›PMID 41156342›Full record

ArticleMicromachines2025

Sensitivity Improvement via Differential Detection for Frequency-Locking Diamond Magnetometers.

Doudou Zheng, Jian Gao, Yang Li, Hui Wang, Yingjie Yang, Hao Guo, Huanfei Wen, Zhonghao Li, Jun Tang, Zongmin Ma and 1 more

Abstract read
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Article in Micromachines, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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1 · What the graph read from it

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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

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3 · Its place in the literature

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4 · The record

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5 · Who and what money

Authors and funding

11 authors.

Doudou ZhengDepartment of Electronic Engineering, Taiyuan Institute of Technology, Taiyuan 030008, China.
Jian GaoState Key Laboratory of Widegap Semiconductor Optoelectronic Materials and Technologies, North University of China, Taiyuan 030051, China.
Yang LiState Key Laboratory of Widegap Semiconductor Optoelectronic Materials and Technologies, North University of China, Taiyuan 030051, China.
Hui WangState Key Laboratory of Widegap Semiconductor Optoelectronic Materials and Technologies, North University of China, Taiyuan 030051, China.
Yingjie YangState Key Laboratory of Widegap Semiconductor Optoelectronic Materials and Technologies, North University of China, Taiyuan 030051, China.
Hao GuoState Key Laboratory of Widegap Semiconductor Optoelectronic Materials and Technologies, North University of China, Taiyuan 030051, China.
Huanfei WenState Key Laboratory of Widegap Semiconductor Optoelectronic Materials and Technologies, North University of China, Taiyuan 030051, China.ORCID 0000-0002-2972-9669
Zhonghao LiState Key Laboratory of Widegap Semiconductor Optoelectronic Materials and Technologies, North University of China, Taiyuan 030051, China.ORCID 0000-0002-7164-3447
Jun TangState Key Laboratory of Widegap Semiconductor Optoelectronic Materials and Technologies, North University of China, Taiyuan 030051, China.
Zongmin MaState Key Laboratory of Widegap Semiconductor Optoelectronic Materials and Technologies, North University of China, Taiyuan 030051, China.
Jun LiuState Key Laboratory of Widegap Semiconductor Optoelectronic Materials and Technologies, North University of China, Taiyuan 030051, China.

Funding

Doctoral (Postdoctoral) Research Funding Program 2023KJ030Excellent Doctoral (Postdoctoral) Research Funding Program 2023LJ007Key Lab of Quantum Sensing and Precision Measurement, Shanxi. 201905D121001National Key Research and Development Program of China 2022YFC2204104NSFC Projects of International Cooperation and Exchange 62220106012Scientific and Technological Innovation Programs of Higher Education Institutions in Shanxi 2024L366Sci-Tech Cooperation and Exchange Project of Shanxi 202204041101015Shanxi Outstanding Youth Fund 202103021221007
6 · The paper itself

Abstract

The magnetic resonance frequency-locking technique is recognized as an effective approach for simultaneously improving the dynamic range, performance stability, and measurement precision of diamond nitrogen vacancy (NV)-center magnetometers. Nevertheless, insufficient research on sensitivity limits the overall performance of frequency-locking diamond magnetometers. In this paper, we propose a dual-magnetic-resonance-frequency-locking (MRFL) differential detection method. Theoretical and experimental results demonstrate that the scaling factor between the sensor output and the magnetic field is doubled compared with that under the single-MRFL method, and the proposed method also enables alternating current (AC) magnetic field detection. The proposed system exhibits a measurement range from -0.29 mT to 0.30 mT. Furthermore, a sensitivity of 0.56 nT/√Hz is achieved, representing a 58.2% improvement relative to that of the single-MRFL method. Our work provides a viable solution for accelerating the transition of frequency-locking diamond magnetometers from laboratory research to practical applications.

Indexed as

differential detectionfrequency lockingNV centersensitivity

Identifiers

PMID41156342
PMCPMC12565793

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