An Optically Pumped Magnetometer with Omnidirectional Magnetic Field Sensitivity [PDF]
Sensors, 2023 In mobile applications such as geomagnetic surveying, two major effects hamper the use of optically pumped magnetometers: dead zones, sensor orientations where the sensors signal amplitude drops; and heading errors, a dependence of the measured magnetic ...
Volkmar Schultze +5 more
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An Optically Pumped Magnetometer Working in the Light-Shift Dispersed Mz Mode [PDF]
Sensors, 2017 We present an optically pumped magnetometer working in a new operational mode—the light-shift dispersed Mz (LSD-Mz) mode. It is realized combining various features; (1) high power off-resonant optical pumping; (2) Mz configuration, where pumping light ...
Volkmar Schultze +5 more
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Theoretical advantages of a triaxial optically pumped magnetometer magnetoencephalography system [PDF]
NeuroImage, 2021 The optically pumped magnetometer (OPM) is a viable means to detect magnetic fields generated by human brain activity. Compared to conventional detectors (superconducting quantum interference devices) OPMs are small, lightweight, flexible, and operate ...
Matthew J. Brookes +9 more
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Cross-Axis Dynamic Field Compensation of Optically Pumped Magnetometer Arrays for MEG [PDF]
NeuroImage, 2022 We present dynamic field compensation (DFC), whereby three-axis field measurements from reference magnetometers are used to dynamically maintain null at the alkali vapor cells of an array of primary sensors that are proximal to a subject's scalp ...
Stephen E. Robinson +8 more
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Spatial and Frequency Specific Artifact Reduction in Optically Pumped Magnetometer Recordings [PDF]
Journal of Integrative Neuroscience, 2022 Background: Magnetoencephalography (MEG) based on optically pumped magnetometers (OPMs) opens up new opportunities for brain research. However, OPM recordings are associated with artifacts.
Jing Xiang +3 more
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Phantom-Based Approach for Comparing Conventional and Optically Pumped Magnetometer Magnetoencephalography Systems [PDF]
SensorsMagnetoencephalography (MEG) is a vital tool for understanding neural dynamics, offering a noninvasive technique for measuring subtle magnetic field variations around the scalp generated by synchronized neuronal activity.
Daisuke Oyama, Hadi Zaatiti
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Early insights into eyeblink conditioning using optically pumped magnetometer-based MEG [PDF]
Frontiers in Human NeuroscienceIntroductionThere is a profound lack of electrophysiological data from the cerebellum in humans, as compared to animals, because it is difficult to record cerebellar activity non-invasively using magnetoencephalography (MEG) or electroencephalography ...
Chin-Hsuan Sophie Lin +10 more
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Research on the application of unmanned aerial vehicle aeromagnetic measurement based on rubidium optical pump magnetometer [PDF]
Scientific ReportsOptical Pumped Magnetometers (OPMs) have become key instruments in the field of precision magnetic field measurement due to their high accuracy, stability, and compact design.
Hanqi Zhou +10 more
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Tracking the neurodevelopmental trajectory of beta band oscillations with optically pumped magnetometer-based magnetoencephalography [PDF]
eLifeNeural oscillations mediate the coordination of activity within and between brain networks, supporting cognition and behaviour. How these processes develop throughout childhood is not only an important neuroscientific question but could also shed light ...
Lukas Rier +12 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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