Results 21 to 30 of about 654,780 (138)

Different Configurations of Radio-Frequency Atomic Magnetometers—A Comparative Study

open access: yesSensors, 2022
We comprehensively explore different optical configurations of a radio-frequency atomic magnetometer in the context of sensor miniaturisation. Similarities and differences in operation principles of the magnetometer arrangements are discussed.
Patrick Bevington, Witold Chalupczak
doaj   +1 more source

Multi-Parameter Optimization of Rubidium Laser Optically Pumped Magnetometers with Geomagnetic Field Intensity

open access: yesSensors, 2023
Rubidium laser optically pumped magnetometers (OPMs) are widely used magnetic sensors based on the Zeeman effect, laser pumping, and magnetic resonance principles. They measure the magnetic field by measuring the magnetic resonance signal passing through
Kun Xu   +9 more
doaj   +1 more source

In-Situ Detection for Atomic Density in the K-Rb-21Ne Co-Magnetometer via an Optical Heterodyne Interferometry

open access: yesPhotonics, 2023
The low-frequency fluctuations of the atomic density within the cell can induce the longterm drift of the K-Rb-21Ne spin-exchange relaxation-free (SERF) co-magnetometer output, such that the accurate measurement of in situ atomic density is of great ...
Sixun Liu, Zhuo Wang, Yueyang Zhai
doaj   +1 more source

High resolution field imaging with atomic vapor cells [PDF]

open access: yes, 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

MPS and ACS with an atomic magnetometer [PDF]

open access: yes, 2016
We show that a single atomic magnetometer in a magnetically unshielded environment can be used to perform magnetic particle spectroscopy (MPS) and AC susceptometry (ACS) on liquid-suspended magnetic nanoparticles.
Dolgovskiy, Vladimir   +4 more
core   +3 more sources

A New Method for Reduction of Atomic Magnetometer Noise Based on Multigene Genetic Programming

open access: yesIEEE Access, 2019
An ultra-high precision magnetic field measurement is of great scientific and economic significance. An atomic magnetometer that operates in a spin-exchange relaxation-free (SERF) regime has superior sensitivity and, thus, is of great significance for ...
Wei Quan, Feng Liu, Wenfeng Fan
doaj   +1 more source

Atomic Clock and Atomic Magnetometer [PDF]

open access: yes, 2016
Todaythe Battery-operated clocks (quartz clock) with frequency instabilities of 10-11 can be used for time interval up to a day, and the package is not larger than 1 cm3, it could be widely used in portable electronic devices.
, Nikhil D. Kothawade, Prof. Dr. M. H. Nerkar
core   +1 more source

Analysis and Correction of the Crosstalk Effect in a Three-Axis SERF Atomic Magnetometer

open access: yesPhotonics, 2022
Three-axis atomic magnetometers have an excellent advantage for determining the complete vector information of a magnetic field to be measured. However, the crosstalk effect, which leads to an error output on one axis owing to a magnetic field on the ...
Yeguang Yan   +7 more
doaj   +1 more source

Differential behavior of magnetic field and magnetic vector potential in an optically pumped Rb atomic magnetometer

open access: yesAIP Advances, 2023
Although vector potentials are more intrinsic physical quantities than magnetic and electric fields, measuring them macroscopically is difficult. A double-nested Helmholtz-type vector potential coil, consisting of an elongated solenoid coil wound around ...
Y. Shoji, M. Daibo
doaj   +1 more source

Imaging of material defects with a radio-frequency atomic magnetometer [PDF]

open access: yes, 2019
Non-destructive inductive testing of defects in metal plates using the magnetic resonance signal of a radio-frequency atomic magnetometer is demonstrated.
Bevington, P.   +2 more
core   +4 more sources

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