Results 71 to 80 of about 1,280 (179)

Comparison of sensor localization methods for Optically Pumped Magnetometers

Current Directions in Biomedical Engineering
Optically pumped magnetometers (OPMs) are magnetic field sensors which can be used for different biomedical applications. Due to their modularity and small size, they can be flexibly arranged over the region of interest.
Anders Paul, Brickwedde Marion, Krüger Peter, Haueisen Jens, Uhlhaas Peter J., Sander Tilmann   +5 more
doaj   +1 more source

Stress‐to‐Light Conversion in an Earth‐Abundant Oxide Semiconductor

Advanced Science, EarlyView.
Stress‐to‐light conversion in solids represents a unique photonic functionality, yet it has never been realized in a chemically simple and sustainable material. Here, we show that sustainable semiconductor ZnO exhibits strong near‐infrared (NIR) luminescence under elastic stress when defect‐engineered to stabilize the p‐type state.
Tomoki Uchiyama, Koki Otonari, Reona Omori, Guangfa Yang, Eiji Nishibori, Ying Chen, Xu‐Guang Zheng, Chao‐Nan Xu   +7 more
wiley   +1 more source

A modular optically pumped magnetometer system

Quantum Science and Technology
Abstract To address the demands in healthcare and industrial settings for spatially resolved magnetic imaging, we present a modular optically pumped magnetometer (OPM) system comprising a multi-sensor array of highly sensitive quantum magnetometers.
T Coussens, A Gialopsou, C Abel, M G Bason, T M James, W Evans, M T M Woodley, D Nightingale, D Nicolau, L Page, F Oručević, P Krüger   +11 more
openaire   +2 more sources

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  

Comparison of noise levels of two magnetometer types and their suitability for different space environments [PDF]

Geoscientific Instrumentation, Methods and Data Systems
The plasma environment around Earth has markedly different characteristics of the magnetic field across distinct spatial regions. In the solar wind, beyond Earth's magnetic influence, the magnetic field is relatively low and less fluctuating. In contrast,
G. Timmermann, D. Fischer, H.-U. Auster, I. Richter, B. Grison, F. Plaschke   +5 more
doaj   +1 more source

Dependence on sensitivity patterns of bias fields for vector measurements using optically pumped vapor magnetometers

AIP Advances, 2020
The optical light shift effect is an all-optical technique to create magnetic bias fields to determine the vector components of the magnetic field using a scalar optically pumped magnetometer.
Janet W. Lou, Geoffrey A. Cranch
doaj   +1 more source

3D‐Printed Magnetoelectronics for Interactive Appliances and Self‐Aware 4D‐Printed Mechatronics

Advanced Science, EarlyView.
3D‐printed magnetoelectronics integrate high‐performance magnetic field sensing directly into complex structural components. Flexible spring and cross‐shaped sensors exhibit giant magnetoimpedance and 3D Hall sensing for vector field reconstruction. Applications include smart‐home switches, robotic joysticks, volumetric magnetometers, and self‐aware 4D‐
Eduardo Sergio Oliveros‐Mata, Anna Martin Vilardell, Fabian Ganss, Christoph Leyens, Lukas Stepien, Denys Makarov   +5 more
wiley   +1 more source

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, Tony R, Carter, Amir, Borna, Yuan-Yu, Jau, Cort N, Johnson, Amber L, Dagel, Peter D D, Schwindt   +6 more
openaire   +2 more sources

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

Atomically Modulating Competing Exchange Interactions in Centrosymmetric Skyrmion Hosts GdRu2X2 (X = Si and Ge)

Advanced Electronic Materials, EarlyView.
Our work bridges the gap between skyrmion discovery and material design by demonstrating how atomic‐scale control of exchange interactions enables tunable skyrmion phase transitions in centrosymmetric magnetic metals. ABSTRACT Magnetic skyrmions are topologically protected spin states that hold promise for shaping the future of electronics.
Dasuni N. Rathnaweera, Xudong Huai, K. Ramesh Kumar, Michał J. Winiarski, Tomasz Klimczuk, Allana G. Iwanicki, Satya K. Kushwaha, Martin Mourigal, Tyrel M. McQueen, Thao T. Tran   +9 more
wiley   +1 more source