Results 21 to 30 of about 96,670 (200)
Applied SciencesHigh-precision magnetometers play a crucial role in ocean exploration, geophysical prospecting, and military and security applications. Installing them on human-occupied vehicle (HOV) platforms can greatly enhance ocean exploration capabilities and ...
Keyu Zhou, Qimao Zhang, Qisheng Zhang
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NeuroImage, 2021 Here we propose that much of the magnetic interference observed when using optically pumped magnetometers for MEG experiments can be modeled as a spatially homogeneous magnetic field.
Tim M. Tierney +7 more
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Measuring the cortical tracking of speech with optically-pumped magnetometers [PDF]
NeuroImage, 2021 During continuous speech listening, brain activity tracks speech rhythmicity at frequencies matching with the repetition rate of phrases (0.2–1.5 Hz), words (2–4 Hz) and syllables (4–8 Hz).
Paul de Lange +8 more
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Polarization‐Improved Bidirectional‐Pump Atomic Magnetometer Based on Spin‐Decoupled Metasurface [PDF]
Advanced ScienceThe optically pumped atomic magnetometer (OPAM) has emerged as an advanced instrument for magnetic field detection. However, the performance of conventional OPAMs is constrained by factors such as non‐uniform atomic polarization and insufficient ...
Shuo Sun +6 more
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Floquet description of optically pumped magnetometers [PDF]
Physical Review A, 2021 We present theoretical description of Voigt and Faraday effect based optically pumped magnetometers using the Floquet expansion. Our analysis describes the spin-operator dynamics of the first, $\hat{F}(t)$, and second, $\hat{F}^2(t)$, order moments and takes into account of different pumping profiles and decoherence effects.
Hans Marin Florez, Tadas Pyragius
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Peripheral Nerve Magnetoneurography with Optically Pumped Magnetometers [PDF]
Frontiers in Physiology, 2021 Abstract Electrodiagnosis is routinely integrated into clinical neurophysiology practice for peripheral nerve disease diagnoses such as neuropathy, demyelinating disorders, nerve entrapment/impingement, plexopathy or radiculopathy. Measured with conventional surface electrodes, the propagation of peripheral nerve action potentials along
Yifeng Bu +13 more
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Drug Monitoring by Optically Pumped Atomic Magnetometer
IEEE Photonics Journal, 2022 A novel drug monitoring method is experimentally demonstrated by optically pumped atomic magnetometer. An elliptically polarized single-beam spin-exchange-relaxation-free atomic magnetometer (SERF AM) is used to realize magnetorelaxometry (MRX ...
Yi Ruan +10 more
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Optically Pumped Magnetometer Measuring Fatigue-Induced Damage in Steel
Applied Sciences, 2022 Uniaxial fatigue testing of micro-mechanical metallic specimens can provide valuable insight into damage formation. Magnetic and piezomagnetic testing are commonly used for qualitative characterization of damage in ferromagnetic specimens.
Peter A. Koss +8 more
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A High-Sensitivity Cesium Atomic Magnetometer Based on A Cesium Spectral Lamp
Applied Sciences, 2023 Based on a low-noise cesium spectral lamp, a high-sensitivity self-oscillating cesium atomic magnetometer with a wide operating temperature range has been developed, solving problems with existing sensors such as a limited operating temperature range and
Yuan-Tian Lu +7 more
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