Results 81 to 90 of about 183,781 (139)

Spatial frequency isotropy of an optically pumped

, 2001
Optically pumped magnetometers are scalar magnetometers which are particularly suitable for mobile applications for which it is necessary to use an isotropic sensor.
H. Gilles, B. Chéron, J. Hamel
core   +1 more source

Al2O3 ultra-thin films deposited by PEALD and ThALD for rubidium optically pumped atomic magnetometers [PDF]

, 2023
[Excerpt] The Atomic Layer Deposition (ALD) technique can be used to improve the rubidium optically pumped atomic magnetometers (OPMs) cell lifetime with a conformal deposition of Al2O3 ultra-thin film on the internal cell walls as a protective coating
Silva, M. F., Correia, J. H., Cunha, F. M.   +2 more
core   +1 more source

Optically-Pumped Magnetometers for the Energy Sector: Challenges & Prospects

e-Journal of Nondestructive Testing

Sebastien Boisseau, Thomas Jager, Aurore Lepecq, Thomas Maurin, David Fraboulet, Jean-Michel Leger   +5 more
doaj   +1 more source

Using optically pumped magnetometers to identify initial damage in bulk material during fatigue testing

, 2022
The extreme sensitivity of quantum magnetometers enables new applications in material testing such as the identification of single defect events in the bulk of small volume specimen (0.1 mm³).
Kühnemann, Frank, Koss, Peter, Bertz, Alexander, Blug, Andreas, Straub, Thomas, Laskin, Gennadii, Thiemann, Kerstin, Durmaz, Ali Riza   +7 more
core   +1 more source

A project for a new alkali vapour magnetometer, optically pumped by a diode laser

Annals of Geophysics, 1998
We present here a project for the industrial development of a new magnetometer that is intended to achieve the highest performance in measuring geomagnetic field.
A. Donati, E. Simeone, M. Francesconi, E. Maccioni, E. Alzetta, C. Carmisciano, O. Faggioni, N. Beverini, F. Strumia   +8 more
doaj   +1 more source

Magnetoencephalography With Optically Pumped He-4 Magnetometers at Ambient Temperature

, 2019
WOS:000455110500009International audienceIn this paper, we present the first proof of concept confirming the possibility to record magnetoencephalographic (MEG) signals with Optically Pumped Magnetometers (OPMs) based on the parametric resonance of 4 He ...
Labyt, Etienne, Matthieu Le Prado, Sophie Morales, Lenouvel, Francois, Gilles Cauffet, Francois Lenouvel, Francis Bertrand, Etienne Labyt, Laloy, Augustin Palacios, Cauffet, Gilles, Bertrand, Francois, Marie-Constance Corsi, Corsi, Marie-Constance, Fourcault, William, Berger, Francois, Augustin Palacios Laloy, William Fourcault, Le Prado, Matthieu, Francois Berger, Morales, Sophie   +19 more
core   +1 more source

Noise Reduction and Localization Accuracy in a Mobile Magnetoencephalography System

Sensors
Magnetoencephalography (MEG) non-invasively provides important information about human brain electrophysiology. The growing use of optically pumped magnetometers (OPM) for MEG, as opposed to fixed arrays of cryogenic sensors, has opened the door for ...
Timothy Bardouille, Vanessa Smith, Elias Vajda, Carson Drake Leslie, Niall Holmes   +4 more
doaj   +1 more source

High resolution field imaging with atomic vapor cells [PDF]

, 2015
In this thesis, I report on the development of imaging techniques in atomic vapor cells. This is a relatively unexplored area, despite the ubiquitous use of imaging in experiments with ultracold atoms.
Horsley, Andrew
core   +1 more source

Superconducting Quantum Magnetometers for Brain Investigations

Sensors
This review article aims to provide an overview of superconducting magnetic quantum sensors and their applications in the biomedical field, particularly in the neurological field.
Carmela Bonavolontà, Antonio Vettoliere, Pierpaolo Sorrentino, Carmine Granata   +3 more
doaj   +1 more source

Modeling and Measuring of Light Shift in Optically Pumped Atomic Magnetometers

IEEE Photonics Journal
The light shift is a significant error source of optically pumped atomic magnetometers (OPAMs), requiring accurate calculation or measurement to assess its impact on the accuracy of OPAMs.
Yuntian Zou, Xiangyang Zhou, Jiali Liu, Chi Fang, Jinghong Xu, Wei Quan, Liwei Jiang   +6 more
doaj   +1 more source