Compact high-bandwidth single-beam optically-pumped magnetometer for biomagnetic measurement. [PDF]
Biomed Opt ExpressOptically-pumped magnetometer (OPM) has been of increasing interest for biomagnetic measurements due to its low cost and portability compared with superconducting quantum interference devices (SQUID).
Wu T, Xiao W, Peng X, Wu T, Guo H.
europepmc +2 more sources
Four-channel optically pumped magnetometer for a magnetoencephalography sensor array. [PDF]
Opt ExpressWe present a novel four-channel optically pumped magnetometer (OPM) for magnetoencephalography that utilizes a two-color pump/probe scheme on a single optical axis. We characterize its performance across 18 built sensor modules. The new sensor implements
Iivanainen J +8 more
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Optimising the sensitivity of optically-pumped magnetometer magnetoencephalography to gamma band electrophysiological activity. [PDF]
Imaging Neurosci (Camb)The measurement of electrophysiology is of critical importance to our understanding of brain function. However, current non-invasive measurements—electroencephalography (EEG) and magnetoencephalography (MEG)—have limited sensitivity, particularly ...
Hill RM +11 more
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Decoding the Temporal Structures and Interactions of Multiple Face Dimensions Using Optically Pumped Magnetometer Magnetoencephalography (OPM-MEG). [PDF]
J NeurosciHumans possess a remarkable ability to rapidly access diverse information from others’ faces with just a brief glance, which is crucial for intricate social interactions.
Xu W +15 more
europepmc +2 more sources
A Multi-Pass Optically Pumped Rubidium Atomic Magnetometer with Free Induction Decay
Sensors, 2022 A free-induction-decay (FID) type optically-pumped rubidium atomic magnetometer driven by a radio-frequency (RF) magnetic field is presented in this paper.
Lulu Zhang +4 more
doaj +3 more sources
High Sensitivity Optically Pumped Quantum Magnetometer [PDF]
The Scientific World Journal, 2013 Quantum magnetometers based on optical pumping can achieve sensitivity as high as what SQUID-based devices can attain. In this paper, we discuss the principle of operation and the optimal design of an optically pumped quantum magnetometer.
Valentina Tiporlini, Kamal Alameh
doaj +4 more sources
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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NeuroImageRecent advancements in optically pumped magnetometer magnetoencephalography (OPM-MEG) make it a promising alternative to conventional SQUID-MEG systems.
Wei Xu +5 more
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Frequency Response of Optically Pumped Magnetometer with Nonlinear Zeeman Effect
Applied Sciences, 2020 Optically pumped alkali atomic magnetometers based on measuring the Zeeman shifts of the atomic energy levels are widely used in many applications because of their low noise and cryogen-free operation.
Rui Zhang +4 more
doaj +3 more sources
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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