Detection of human auditory evoked brain signals with a resilient nonlinear optically pumped magnetometer
Sign Up to like & getrecommendations! Published in 2021 at "Neuroimage"
DOI: 10.1016/j.neuroimage.2020.117497
Abstract: Highlights • We have built and tested an Optically Pumped Magnetometer based on non-linear magnetooptical rotation.• We present a new approach to OPM- based MEG using a modular NOPM sensor.• Our sensor is resilient to… read more here.
Keywords: detection human; evoked brain; human auditory; pumped magnetometer ... See more keywords
Theoretical advantages of a triaxial optically pumped magnetometer magnetoencephalography system
Sign Up to like & getrecommendations! Published in 2021 at "NeuroImage"
DOI: 10.1016/j.neuroimage.2021.118025
Abstract: 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 without cryogenics.… read more here.
Keywords: system; pumped magnetometer; theoretical advantages; magnetoencephalography ... See more keywords
Magnetocardiography on an isolated animal heart with a room-temperature optically pumped magnetometer
Sign Up to like & getrecommendations! Published in 2018 at "Scientific Reports"
DOI: 10.1038/s41598-018-34535-z
Abstract: Optically pumped magnetometers are becoming a promising alternative to cryogenically-cooled superconducting magnetometers for detecting and imaging biomagnetic fields. Magnetic field detection is a completely non-invasive method, which allows one to study the function of excitable… read more here.
Keywords: heart; temperature; pumped magnetometer; room ... See more keywords
Characterization of noise sources in a microfabricated single-beam zero-field optically-pumped magnetometer.
Sign Up to like & getrecommendations! Published in 2019 at "Journal of applied physics"
DOI: 10.1063/1.5098088
Abstract: We present an experimental noise characterization of a miniature single-beam absorption-based optically-pumped magnetometer with a noise floor of 7 fT/Hz1/2 operating in the spin-exchange relaxation-free regime. We experimentally evaluate noise arising from the laser intensity, laser… read more here.
Keywords: noise sources; field; pumped magnetometer; noise ... See more keywords
Integrated Optically Pumped Magnetometer for Measurements within Earth’s Magnetic Field
Sign Up to like & getrecommendations! Published in 2022 at "Physical Review Applied"
DOI: 10.1103/physrevapplied.17.024034
Abstract: We present a portable optically pumped magnetometer instrument for ultra-sensitive measurements within the Earth's magnetic field. The central part of the system is a sensor head operating a MEMS-based Cs vapor cell in the light-shift… read more here.
Keywords: within earth; optically pumped; measurements within; magnetic field ... See more keywords
Magnetic Source Imaging Using a Pulsed Optically Pumped Magnetometer Array
Sign Up to like & getrecommendations! Published in 2019 at "IEEE Transactions on Instrumentation and Measurement"
DOI: 10.1109/tim.2018.2851458
Abstract: We have developed a pulsed optically pumped magnetometer (OPM) array for detecting magnetic field maps originated from an arbitrary current distribution. The presented magnetic source imaging (MSI) system features 24-OPM channels has a data rate… read more here.
Keywords: array; optically pumped; magnetic field; pulsed optically ... See more keywords
Vector magnetocardiography measurement with a compact elliptically polarized laser-pumped magnetometer.
Sign Up to like & getrecommendations! Published in 2020 at "Biomedical optics express"
DOI: 10.1364/boe.380314
Abstract: We report on a practical approach to vector biomagnetism measurement with an optically pumped magnetometer for measuring total magnetic field intensity. Its application to vector magnetocardiography is experimentally demonstrated with a compact elliptically polarized laser-pumped… read more here.
Keywords: vector; elliptically polarized; pumped magnetometer; vector magnetocardiography ... See more keywords