Results 81 to 90 of about 3,346 (191)
Theory of double resonance magnetometers based on atomic alignment [PDF]
, 2006 We present a theoretical study of the spectra produced by optical-radio-frequency double resonance devices, in which resonant linearly polarized light is used in the optical pumping and detection processes. We extend previous work by presenting algebraic
Anatoly S. Pazgalev +7 more
core +2 more sources
Four-channel optically pumped atomic magnetometer for magnetoencephalography
Optics Express, 2016 We have developed a four-channel optically pumped atomic magnetometer for magnetoencephalography (MEG) that incorporates a passive diffractive optical element (DOE). The DOE allows us to achieve a long, 18-mm gradiometer baseline in a compact footprint on the head.
Anthony P, Colombo +6 more
openaire +2 more sources
Faraday–Ramsey Rotation in Ultrathin Alkali Vapor Cells as an Analogy to Atomic‐Beam Systems
Laser &Photonics Reviews, EarlyView.This work demonstrates that ultrathin rubidium vapor cells can emulate atomic‐beam behavior through geometry‐dependent velocity filtering. Employing a spatially separated pump–probe scheme and Faraday–Ramsey rotation, the study reveals coherent atomic dynamics without buffer gas or anti‐relaxation coatings. This approach offers a compact pathway toward
Mark Dikopoltsev +4 more
wiley +1 more source
NeuroImage, 2021 Here we propose that much of the magnetic interference observed when using optically pumped magnetometers for MEG experiments can be modeled as a spatially homogeneous magnetic field.
Tim M. Tierney +7 more
doaj +1 more source
Contactless measurements of retinal activity using optically pumped magnetometers
NeuroImage, 2021 Optically pumped magnetometers (OPMs) have been adopted for the measurement of brain activity. Without the need to be cooled to cryogenic temperatures, an array of these sensors can be placed more flexibly, which allows for the recording of neuronal structures other than neocortex.
Westner, Britta U. +4 more
openaire +5 more sources
Equine Veterinary Journal, EarlyView.Abstract The need for comprehensive equine welfare assessments has become particularly evident amid ongoing debates about the social licence to operate in equestrian sports. During exercise, multiple physiological systems, principally the cardiovascular, respiratory, muscular, thermoregulatory, endocrine, and locomotory systems, undergo complex ...
Rhana Mackie Aarts +3 more
wiley +1 more source
Applied Sciences, 2020 This paper analyzes the noise sources in photoelectric detection circuits with several low-noise operational amplifiers cores. The fabricated circuits are low-noise pre-amplifiers that are used for optically pumped magnetometers. In the proposed circuits,
Leisong Liu +4 more
doaj +1 more source
Electromagnetic induction imaging with a radio-frequency atomic magnetometer [PDF]
, 2016 We report on a compact, tunable, and scalable to large arrays imaging device, based on a radio-frequency optically pumped atomic magnetometer operating in magnetic induction tomography modality.
Cameron Deans +4 more
core +2 more sources
ChemistryOpen, Volume 15, Issue 5, May 2026.This review summarizes recent advances in the synthesis and processing of carbon nanotubes and carbon nanocomposites, highlighting structure–property relationships and their applications in energy storage, biomedical systems, and environmental technologies, with emphasis on performance optimization and sustainable material design.
Noor‐ul‐Huda Altaf +9 more
wiley +1 more source
Ultra-high sensitivity magnetic field and magnetization measurements with an atomic magnetometer
, 2009 We describe an ultra-sensitive atomic magnetometer using optically-pumped potassium atoms operating in spin-exchange relaxation free (SERF) regime.
A. C. Maloof +3 more
core +1 more source