A Miniaturized Microwave Magnetometer with High Frequency Resolution Based on Diamond NV Centers for Multi-Microwave-Field Measurement.

Yaozhong Tian, Bo Wang, Qiang Zhu, Xin Li, Wenyuan Hao, Huanfei Wen, Jun Tang, Jun Liu

Abstract read

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Article in Micromachines, 2026. 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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5 · Who and what money

Authors and funding

8 authors.

Yaozhong TianState Key Laboratory of Extreme Environment Optoelectronic Dynamic Measurement Technology and Instrument, North University of China, Taiyuan 030051, China.

Bo WangState Key Laboratory of Extreme Environment Optoelectronic Dynamic Measurement Technology and Instrument, North University of China, Taiyuan 030051, China.

Qiang ZhuState Key Laboratory of Solid State Lighting, North University of China, Taiyuan 030051, China.

Xin LiState Key Laboratory of Extreme Environment Optoelectronic Dynamic Measurement Technology and Instrument, North University of China, Taiyuan 030051, China.

Wenyuan HaoState Key Laboratory of Extreme Environment Optoelectronic Dynamic Measurement Technology and Instrument, North University of China, Taiyuan 030051, China.

Huanfei WenState Key Laboratory of Science and Technology on Electronic Test and Measurement Laboratory, North University of China, Taiyuan 030051, China.ORCID 0000-0002-2972-9669

Jun TangState Key Laboratory of Solid State Lighting, North University of China, Taiyuan 030051, China.

Jun LiuState Key Laboratory of Extreme Environment Optoelectronic Dynamic Measurement Technology and Instrument, North University of China, Taiyuan 030051, China.

Funding

National Natural Science Foundation of China 52275551

6 · The paper itself

Abstract

Diamond nitrogen-vacancy (NV) centers are regarded as promising microwave sensors owing to their excellent magnetic sensitivity, stability, and environmental compatibility. However, traditional confocal test platforms based on diamond NV centers are bulky, which limits their practical applications. In this paper, a fiber-coupled compact NV microwave magnetometer is designed that employs the continuous heterodyne measurement method and a fast Fourier transform to measure multiple microwave fields. We integrated the laser excitation module, microwave antenna module, and fluorescence collection module into a single unit, reducing the volume of the magnetometer to 13 cubic centimeters. By adjusting the frequency and power of the measured microwave signals, the applicability of the device under different frequency and power conditions was verified. Experimental tests show that the microwave magnetometer can simultaneously detect multiple microwave fields with different frequencies and power levels, achieving a frequency resolution on the order of millihertz (mHz) and a microwave detection sensitivity of 0.385 nT/Hz

Indexed as

magnetometermicrowave magnetic fieldNV centerquantum sensor

Identifiers

PMID42354679

DOI10.3390/mi17060647

PMCPMC13302772

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.