Results 61 to 70 of about 90,554 (217)

Multichannel optical atomic magnetometer operating in unshielded environment

, 2016
A multi-channel atomic magnetometer operating in an unshielded environment is described and characterised. The magnetometer is based on D1 optical pumping and D2 polarimetry of Cs vapour contained in gas-buffered cells.
Bevilacqua, Giuseppe, Biancalana, Valerio, Chessa, Piero, Dancheva, Yordanka   +3 more
core   +1 more source

Evaluating the performance of optically pumped magnetometers (OPM) in the diagnosis and presurgical workup of focal epilepsy. [PDF]

J Neurol
Sequeiros P, Hamandi K.
europepmc   +2 more sources

High-sensitivity diamond magnetometer with nanoscale resolution

, 2008
We present a novel approach to the detection of weak magnetic fields that takes advantage of recently developed techniques for the coherent control of solid-state electron spin quantum bits.
A. Yacoby, AM Chang, AM Rey, BM Chernobrod, C Veauvy, CA Meriles, CL Degen, CP Slichter, D Budker, D Budker, D. Budker, DE Chang, E van Oort, F Jelezko, F Jelezko, FT Charnock, GR Khutsishvili, H Seton, HJ Mamin, HJ Mamin, IM Savukov, J Meijer, J. M. Taylor, JF Prins, JR Rabeau, K Khodjasteh, K Kominis, K Schlenga, KF Zhao, KM Salikhov, L Childress, L Viola, L. Childress, L. Jiang, M Auzinsh, M Mehring, M Vengalattore, M. D. Lukin, MVG Dutt, NB Manson, P Mansfield, P. Cappellaro, P. R. Hemmer, R Hanson, R Hanson, R. Walsworth, RJ Epstein, S Kühn, S Meiboom, SJ Bending, SK Sekatskii, T Gaebel   +51 more
core   +1 more source

Fermi Surface Nesting and Anomalous Hall Effect in Magnetically Frustrated Mn2PdIn

Advanced Functional Materials, EarlyView.
Mn2PdIn, a frustrated inverse Heusler alloy, showing electronic‐structure driven anomalous Hall effect with Weyl crossings, Fermi‐surface nesting and near‐zero magnetization ideal for low‐magnetization spintronics. Abstract Noncollinear magnets with near‐zero net magnetization and nontrivial bulk electronic topology hold significant promise for ...
Afsar Ahmed, Arnab Bhattacharya, Prashant Singh, Ajay Kumar, Tukai Singha, Anis Biswas, Yaroslav Mudryk, I. Das   +7 more
wiley   +1 more source

Fetal magnetocardiographic recordings with a prototype bed-based array system of optically-pumped magnetometers. [PDF]

Med Eng Phys
Escalona-Vargas D, Siegel ER, Bolin EH, Eswaran H.   +3 more
europepmc   +2 more sources

Two‐Dimensional Materials as a Multiproperty Sensing Platform

Advanced Functional Materials, EarlyView.
Various sensing modalities enabled and/or enhanced by two‐dimensional (2D) materials are reviewed. The domains considered for sensing include: 1) optoelectronics, 2) quantum defects, 3) scanning probe microscopy, 4) nanomechanics, and 5) bio‐ and chemosensing.
Dipankar Jana, Shubhrasish Mukherjee, Dmitrii Litvinov, Magdalena Grzeszczyk, Sergey Grebenchuk, Makars Šiškins, Virgil Gavriliuc, Yihang Ouyang, Changyi Chen, Yuxuan Ye, Meng Yiming, Maciej Koperski   +11 more
wiley   +1 more source

Performance Analysis of Optically Pumped ⁴He Magnetometers vs. Conventional SQUIDs: From Adult to Infant Head Models

Sensors, 2022
Optically pumped magnetometers (OPMs) are new, room-temperature alternatives to superconducting quantum interference devices (SQUIDs) for measuring the brain’s magnetic fields.
Saeed Zahran, Mahdi Mahmoudzadeh, Fabrice Wallois, Nacim Betrouni, Philippe Derambure, Matthieu Le Prado, Agustin Palacios-Laloy, Etienne Labyt   +7 more
doaj   +1 more source

New Limits on Local Lorentz Invariance in Mercury and Cesium

, 2012
We report new bounds on Local Lorentz Invariance (LLI) violation in Cs and Hg. The limits are obtained through the observation of the the spin- precession frequencies of 199Hg and 133Cs atoms in their ground states as a function of the orientation of an ...
A. Foss, D. K. Kim, D. Orbaker, D. Stein, L. R. Hunter, L. R. Hunter, M. T. Hummon, S. K. Peck   +7 more
core   +1 more source

Contact Lens with Moiré Patterns for High‐Precision Eye Tracking

Advanced Functional Materials, EarlyView.
This work presents a passive contact lens for high‐precision eye tracking, integrating a microscopic moiré grating label. The parallax‐induced shift of macroscopic moiré patterns enables angle measurement with 0.28° precision using a standard camera under ambient light.
Ilia M. Fradkin, Roman V. Kirtaev, Mikhail S. Mironov, Dmitriy V. Grudinin, Alexander A. Marchenko, Marina M. Chugunova, Valentin R. Solovei, Alexander V. Syuy, Andrey A. Vyshnevyy, Ilya P. Radko, Aleksey V. Arsenin, Valentyn S. Volkov   +11 more
wiley   +1 more source

Drug Monitoring by Optically Pumped Atomic Magnetometer

IEEE Photonics Journal, 2022
A novel drug monitoring method is experimentally demonstrated by optically pumped atomic magnetometer. An elliptically polarized single-beam spin-exchange-relaxation-free atomic magnetometer (SERF AM) is used to realize magnetorelaxometry (MRX) measurement and thereby quantify concentrations of superparamagnetic nanoparticles in solutions.
Yi Ruan, Xiang He, Limeng Ruan, Fan Liu, Zhiwen Zhang, Jiaqi Weng, Qinying Yan, Guoyi Zhang, Kan Li, Wenqiang Zheng, Qiang Lin   +10 more
openaire   +2 more sources