Atomic magnetometers and their application in industry

X Bai, K Wen, D Peng, S Liu, L Luo - Frontiers in Physics, 2023 - frontiersin.org
In modern detection techniques, high-precision magnetic field detection plays a crucial role.
Atomic magnetometers stand out among other devices due to their high sensitivity, large …

Quantum magnetic gradiometer with entangled twin light beams

S Wu, G Bao, J Guo, J Chen, W Du, M Shi, P Yang… - Science …, 2023 - science.org
In the past few decades, optical magnetometry has experienced remarkable development
and reached to an outstanding sensitivity. For magnetometry based on optical readout of …

Active underwater detection with an array of atomic magnetometers

C Deans, L Marmugi, F Renzoni - Applied optics, 2018 - opg.optica.org
We report on a 2× 2 array of radio-frequency atomic magnetometers in a magnetic induction
tomography configuration. Active detection, localization, and real-time tracking of …

[HTML][HTML] Electromagnetic induction imaging with a scanning radio frequency atomic magnetometer

C Deans, Y Cohen, H Yao, B Maddox… - Applied Physics …, 2021 - pubs.aip.org
We demonstrate electromagnetic induction imaging with an unshielded, portable radio
frequency atomic magnetometer scanning over the target object. This configuration satisfies …

Sub-picotesla widely tunable atomic magnetometer operating at room-temperature in unshielded environments

C Deans, L Marmugi, F Renzoni - Review of Scientific Instruments, 2018 - pubs.aip.org
We report on a single-channel rubidium radio-frequency atomic magnetometer operating in
unshielded environments and near room temperature with a measured sensitivity of 130 …

Enhanced material defect imaging with a radio-frequency atomic magnetometer

P Bevington, R Gartman, W Chalupczak - Journal of Applied Physics, 2019 - pubs.aip.org
Imaging of structural defects in a material can be realized with a radio-frequency atomic
magnetometer by monitoring the material's response to a radio-frequency excitation field …

Non-destructive structural imaging of steelwork with atomic magnetometers

P Bevington, R Gartman, W Chalupczak… - Applied Physics …, 2018 - pubs.aip.org
We demonstrate the imaging of ferromagnetic carbon steel samples and we detect the
thinning of their profile with a sensitivity of 0.1 mm using a Cs radio-frequency atomic …

Entanglement-enhanced magnetic induction tomography

W Zheng, H Wang, R Schmieg, A Oesterle, ES Polzik - Physical Review Letters, 2023 - APS
Magnetic induction tomography (MIT) is a sensing protocol exploring conductive objects via
their response to radio-frequency magnetic fields. MIT is used in nondestructive testing …

A cold atom radio-frequency magnetometer

Y Cohen, K Jadeja, S Sula, M Venturelli… - Applied Physics …, 2019 - pubs.aip.org
We propose and demonstrate a radio-frequency atomic magnetometer with sub-Doppler
laser cooled rubidium-87. With a simple and compact design, our system demonstrates a …

Machine learning based localization and classification with atomic magnetometers

C Deans, LD Griffin, L Marmugi, F Renzoni - Physical Review Letters, 2018 - APS
We demonstrate identification of position, material, orientation, and shape of objects imaged
by a Rb 85 atomic magnetometer performing electromagnetic induction imaging supported …