Analysis of effects of magnetic field gradient on atomic spin polarization and relaxation in optically pumped atomic magnetometers

X Fang, K Wei, Y Zhai, T Zhao, X Chen, M Zhou… - Optics …, 2022 - opg.optica.org
The magnetic field gradient within optical pum** magnetometers (OPMs) suppresses
sensitivity improvement. We investigated the effects of the magnetic field gradient along the …

In Situ Compensation of Triaxial Magnetic Field Gradient for Atomic Magnetometers

K Yang, J Lu, Y Ma, Z Wang, B Sun… - IEEE Transactions on …, 2022 - ieeexplore.ieee.org
Magnetic field gradients affect numerous modern sensitive measurements and physics
studies using atomic ensemble, resulting in the loss of coherence. In some cases, the …

A high sensitivity closed-loop spin-exchange relaxation-free atomic magnetometer with broad bandwidth

Q Guo, T Hu, C Chen, X Feng, Z Wu… - IEEE Sensors …, 2021 - ieeexplore.ieee.org
Spin-exchange relaxation-free (SERF) atomic magnetometers are the promising non-
cryogenic sensors to potentially replace the superconducting quantum interference device …

Free-induction-decay magnetic field imaging with a microfabricated Cs vapor cell

D Hunter, C Perrella, A McWilliam, JP McGilligan… - Optics …, 2023 - opg.optica.org
Magnetic field imaging is a valuable resource for signal source localization and
characterization. This work reports an optically pumped magnetometer (OPM) based on the …

Four-channel miniaturized SERF magnetometer with spatial inhomogeneous atomic polarization

Z Liang, Y Zhang, T Long, B Li, J Hu, P Zhou… - Optics & Laser …, 2025 - Elsevier
Emerging biomagnetism imaging longing for multi-channel miniaturized spin-exchange
relaxation-free (SERF) atomic magnetometers that promise high resolution …

Scanning multi-channel spin-exchange relaxation-free atomic magnetometer with high spatial and time resolution

F Lu, B Li, J Lu, M Ye, X Ning, B Han - Optics Letters, 2022 - opg.optica.org
The emerging multi-channel spin-exchange relaxation-free (SERF) atomic magnetometer is
a promising candidate for non-intrusive biomagnetism imaging. In this study, we propose a …

Submillimeter-resolution magnetic field imaging with digital micromirror device and atomic vapor cell

C Liu, H Dong, J Sang - Applied Physics Letters, 2021 - pubs.aip.org
Magnetic field source localization and imaging happen at different scales. The sensing
baseline ranges from meter scale, such as magnetic anomaly detection, to centimeter scale …

Ultra-high consistency multichannel SERF atomic magnetometer based on diffractive optics

J Li, Y Liu, Z Chai, Q Cao, R Li, Y Zhai - Sensors and Actuators A: Physical, 2024 - Elsevier
Multichannel spin-exchange relaxation-free (SERF) atomic magnetometers (AMs) have
broad application prospects in array biomagnetic measurement systems because of their …

Surface-wave propagation on non-hermitian metasurfaces with extreme anisotropy

M Coppolaro, M Moccia, G Castaldi… - IEEE Transactions on …, 2021 - ieeexplore.ieee.org
Electromagnetic metasurfaces enable the advanced control of surface-wave propagation by
spatially tailoring the local surface reactance. Interestingly, tailoring the surface resistance …

Suppression of the magnetic noise response caused by elliptically polarized light in an optical rotation detection system

B **ng, J Lu, C Sun, T Yu, Y Wu, Y Gao, B Han - Optics Express, 2022 - opg.optica.org
We analyze and suppress the magnetic noise response in optical rotation detection system
(ORDS) in atomic magnetometers in this study. Because of the imperfections of the optical …