Results 121 to 130 of about 2,930 (181)

Stroboscopic microwave spectroscopy of Voigt-based optically pumped magnetometers

Physical Review A
We present results of stroboscopic microwave spectroscopy of radio-frequency dressed optically pumped magnetometer. Interaction between radio-frequency dressed atoms and a synchronously pulsed microwave field followed by Voigt effect-based optical probing allows us to perform partial state tomography and assess the efficiency of the state preparation ...
Hans Marin Florez, Tadas Pyragius, Thomas Fernholz   +2 more
openaire   +2 more sources

Bedside Magnetocardiography with a Scalar Sensor Array

Sensors
Decades of research have shown that magnetocardiography (MCG) has the potential to improve cardiac care decisions. However, sensor and system limitations have prevented its widespread adoption in clinical practice. We report an MCG system built around an
Geoffrey Z. Iwata, Christian T. Nguyen, Kevin Tharratt, Maximilian Ruf, Tucker Reinhardt, Jordan Crivelli-Decker, Madelaine S. Z. Liddy, Alison E. Rugar, Frances Lu, Kirstin Aschbacher, Ethan J. Pratt, Kit Yee Au-Yeung, Stefan Bogdanovic   +12 more
doaj   +1 more source

Concurrent spinal and brain imaging with optically pumped magnetometers

Journal of Neuroscience Methods
The spinal cord and its interactions with the brain are fundamental for movement control and somatosensation. However, brain and spinal electrophysiology in humans have largely been treated as distinct enterprises, in part due to the relative inaccessibility of the spinal cord.
Mardell, Lydia C, Spedden, Meaghan E, O'Neill, George C, Tierney, Tim M, Timms, Ryan C, Zich, Catharina, Barnes, Gareth R, Bestmann, Sven   +7 more
openaire   +3 more sources

Helium Optically Pumped Magnetometers Can Detect Epileptic Abnormalities as Well as SQUIDs as Shown by Intracerebral Recordings. [PDF]

eNeuro, 2023
Badier JM, Schwartz D, Bénar CG, Kanzari K, Daligault S, Romain R, Mitryukovskiy S, Fourcault W, Josselin V, Le Prado M, Jung J, Palacios-Laloy A, Romain C, Bartolomei F, Labyt E, Bonini F.   +15 more
europepmc   +1 more source

Tri-axial rubidium and helium optically pumped magnetometers for on-scalp magnetoencephalography recording of interictal epileptiform discharges: a case study. [PDF]

Front Neurosci, 2023
Feys O, Corvilain P, Labyt E, Mahmoudzadeh M, Routier L, Sculier C, Holmes N, Brookes M, Goldman S, Romain R, Mitryukovskiy S, Palacios-Laloy A, Schwartz D, Betrouni N, Derambure P, Wallois F, Wens V, De Tiège X.   +17 more
europepmc   +1 more source

Fetal magnetoencephalography based on optically pumped magnetometers

AbstractThe fetus in the third trimester of gestation has already the remarkable capacity to process external sensory information in utero. So far, investigations of fetal brain responses to sensory information have mostly relied on cryogenic magnetoencephalography (MEG), which is suitable to record fetal brain activity and is not much affected by ...
Pierre Corvilain, Chiara Capparini, Vincent Wens, Lauréline Fourdin, Maxime Ferez, Odile Feys, Anne Delbaere, Rosine Lejeune, Deborah Goldman, Caroline De Coninck, Xavier De Tiège, Julie Bertels   +11 more
openaire   +1 more source

OPM-MEG reveals dynamics of beta bursts underlying attentional processes in sensory cortex

Scientific Reports
Human brain electrophysiology is dominated by rhythmic activity—neural oscillations—which play an important role in coordinating brain function. In the somatosensory cortices, the dominant oscillations occur in the beta (13–30 Hz) band and are thought to
Gonzalo Reina Rivero, Zoe Tanner, Lukas Rier, Ryan M. Hill, Vishal Shah, Molly Rea, Cody Doyle, James Osborne, David Bobela, Peter G. Morris, Karen J. Mullinger, Elena Boto, Niall Holmes, Matthew J. Brookes   +13 more
doaj   +1 more source

Improved Biomagnetic Signal-To-Noise Ratio and Source Localization Using Optically Pumped Magnetometers with Synthetic Gradiometers. [PDF]

Brain Sci, 2023
Xiang J, Yu X, Bonnette S, Anand M, Riehm CD, Schlink B, Diekfuss JA, Myer GD, Jiang Y.   +8 more
europepmc   +1 more source

Monitoring magnetic nanoparticle clustering and immobilization with thermal noise magnetometry using optically pumped magnetometers. [PDF]

Nanoscale Adv, 2023
Everaert K, Sander T, Körber R, Löwa N, Van Waeyenberge B, Leliaert J, Wiekhorst F.   +6 more
europepmc   +1 more source

Optically pumped magnetometers enhance neuroimaging performance-An EEG, OPM, and SQUID-MEG study. [PDF]

iScience
Brickwedde M, Anders P, Krüger P, Sander T, Uhlhaas PJ.   +4 more
europepmc   +1 more source