Results 71 to 80 of about 90,554 (217)
Nonzero-Order Resonances in Single-Beam Spin-Exchange Relaxation-Free Magnetometers
Photonics, 2023 Zero-field optically pumped magnetometers operating in the spin-exchange relaxation-free (SERF) regime have been extensively studied, and usually depend on zeroth-order parametric resonance to measure the magnetic field. However, the studies conducted on
Kun Wang +5 more
doaj +1 more source
Detection of radio frequency magnetic fields using nonlinear magneto-optical rotation [PDF]
, 2006 We describe a room-temperature alkali-metal atomic magnetometer for detection of small, high frequency magnetic fields. The magnetometer operates by detecting optical rotation due to the precession of an aligned ground state in the presence of a small ...
D. Budker +9 more
core +2 more sources
Rapid Fabrication of Self‐Propelled and Steerable Magnetic Microcatheters for Precision Medicine
Advanced Materials, EarlyView.A rapid Joule heating fabrication method for the production of self‐propelling, adaptive microcatheters, with tunable stiffness and integrated microfluidic channels is presented. Demonstrated through three microrobotic designs, including a steerable guiding catheter, an untethered wave‐crawling TubeBot, and a distal‐end propelled microcatheter, it was ...
Zhi Chen +5 more
wiley +1 more source
Magnetic Induction Imaging with Optical Atomic Magnetometers: Towards Applications to Screening and Surveillance [PDF]
, 2015 We propose a new approach, based on optical atomic magnetometers and magnetic induction tomography (MIT), for remote and non-invasive detection of conductive targets. Atomic magnetometers overcome the main limitations of conventional MIT instrumentation,
Deans, C +3 more
core +1 more source
Liquid Metal Microrobots for Magnetically Guided Transvascular Navigation
Advanced Materials, EarlyView.Liquid metal‐based microrobots combine magnetic steering, intrinsic X‐ray visibility and softness, to navigate blood vessels even against flow. Under clinically relevant magnetic fields, liquid metal microrobots roll along vessel walls, cross endothelial barriers, and accumulate in target tissues.
Xiaohui Ju +7 more
wiley +1 more source
Advanced Materials, EarlyView.We show a giant, bias‐field free, deterministic, spin‐orbit‐torque switching of perpendicular hard magnets with HC over 1.3 T. By combining the three‐fold 3m symmetry from topological insulator surface states with the rectangular mm2 symmetry from the 2 x 1 intercalation in Cr3Te4, the interface symmetry is significantly reduced into a unidirectional m
He Ren +6 more
wiley +1 more source
Magnetic field imaging with microfabricated optically-pumped magnetometers
Optics Express, 2017 A multichannel imaging system is presented, consisting of 25 microfabricated optically-pumped magnetometers. The sensor probes have a footprint of less than 1 cm2 and a sensitive volume of 1.5 mm × 1.5 mm × 1.5 mm and connect to a control unit through optical fibers of length 5 m.
Alem, Orang +8 more
openaire +2 more sources
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
The development of aperiodic and periodic resting-state power between early childhood and adulthood: New insights from optically pumped magnetometers. [PDF]
Dev Cogn NeurosciVandewouw MM +4 more
europepmc +2 more sources
Radiation source for helium magnetometers [PDF]
, 1991 A radiation source (12) for optical magnetometers (10) which use helium isotopes as the resonance element (30) includes an electronically pumped semiconductor laser (12) which produces a single narrow line of radiation which is frequency stabilized to ...
Slocum, Robert E.
core +1 more source