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
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
doaj +2 more sources
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
doaj +4 more sources
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
doaj +2 more sources
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
doaj +2 more sources
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
openaire +2 more sources
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
openaire +5 more sources
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
doaj +1 more source
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
doaj +1 more source