Results 41 to 50 of about 90,554 (217)
A sound card based multi-channel frequency measurement system [PDF]
, 2005 For physical processes which express themselves as a frequency, for example magnetic field measurements using optically-pumped alkali-vapor magnetometers, the precise extraction of the frequency from the noisy signal is a classical problem.
Bison, G. +3 more
core +2 more sources
VCSEL frequency stabilization for optically pumped magnetometers [PDF]
Chinese Optics Letters, 2021 Optically pumped magnetometers (OPMs) have developed rapidly in the bio-magnetic measurement field, which requires lasers with stable frequency and intensity for high sensitivity. Herein we stabilize a vertical-cavity surface-emitting laser (VCSEL) without any additional setup except for the parts of an OPM.
Yeguang Yan +5 more
openaire +1 more source
Rapid Online Solid-State Battery Diagnostics with Optically Pumped Magnetometers
Applied Sciences, 2020 Solid-state battery technology is motivated by the desire to deliver flexible power storage in a safe and efficient manner. The increasingly widespread use of batteries from mass production facilities highlights the need for a rapid and sensitive ...
Yinan Hu +9 more
doaj +1 more source
Light shift averaging in paraffin-coated alkali vapor cells [PDF]
, 2015 Light shifts are an important source of noise and systematics in optically pumped magnetometers. We demonstrate that the long spin coherence time in paraffin-coated cells leads to spatial averaging of the light shifts over the entire cell volume.
Budker, Dmitry +5 more
core +3 more sources
Optimizing NV magnetometry for Magnetoneurography and Magnetomyography applications
Frontiers in Neuroscience, 2023 Magnetometers based on color centers in diamond are setting new frontiers for sensing capabilities due to their combined extraordinary performances in sensitivity, bandwidth, dynamic range, and spatial resolution, with stable operability in a wide range ...
Chen Zhang +12 more
doaj +1 more source
Experimental study of laser detected magnetic resonance based on atomic alignment [PDF]
, 2006 We present an experimental study of the spectra produced by optical/radio-frequency double resonance in which resonant linearly polarized laser light is used in the optical pumping and detection processes.
Anatoly S. Pazgalev +12 more
core +2 more sources
Active Magnetic-Field Stabilization with Atomic Magnetometer
Sensors, 2020 A magnetically-quiet environment is important for detecting faint magnetic-field signals or nonmagnetic spin-dependent interactions. Passive magnetic shielding using layers of large magnetic-permeability materials is widely used to reduce the magnetic ...
Rui Zhang +7 more
doaj +1 more source
Optimization and performance of an optical cardio-magnetometer [PDF]
, 2004 Cardiomagnetometry is a growing field of noninvasive medical diagnostics that has triggered a need for affordable high-sensitivity magnetometers. Optical pumping magnetometers are promising candidates satisfying that need since it was demonstrated that ...
Alexandrov +16 more
core +2 more sources
Theory of double resonance magnetometers based on atomic alignment [PDF]
, 2006 We present a theoretical study of the spectra produced by optical-radio-frequency double resonance devices, in which resonant linearly polarized light is used in the optical pumping and detection processes. We extend previous work by presenting algebraic
Anatoly S. Pazgalev +7 more
core +2 more sources
NeuroImage, 2022 Multimodal neuroimaging plays an important role in neuroscience research. Integrated noninvasive neuroimaging modalities, such as magnetoencephalography (MEG), electroencephalography (EEG) and functional near-infrared spectroscopy (fNIRS), allow neural ...
Xingyu Ru +18 more
doaj +1 more source