Results 21 to 30 of about 20,213 (251)

Rabi oscillation of spin-polarized rubidium in the spin-exchange relaxation-free regime

open access: yesOptics Express, 2022
The transient dynamics of atomic spins under oscillating and static magnetic fields have been studied in the spin-exchange relaxation-free (SERF) regime with a dual-beam configuration. The spin-relaxation rate can be accurately measured by detecting the transient response signal of the free induction decay (FID) process within several milliseconds ...
Yaxiang Wang   +6 more
openaire   +2 more sources

Temperature Dependence of Magnetization Dynamics in Co/IrMn and Co/FeMn Exchange Biased Structures

open access: yesMagnetochemistry, 2023
Thin film ferromagnet/antiferromagnet (F/AF) exchange biased structures that are widely used in GMR spin valves are considered nowadays as promising systems for antiferromagnetic spintronic and spin-orbitronic devices.
Irina O. Dzhun   +6 more
doaj   +1 more source

Measurement Sensitivity Improvement of All-Optical Atomic Spin Magnetometer by Suppressing Noises

open access: yesSensors, 2016
Quantum manipulation technology and photoelectric detection technology have jointly facilitated the rapid development of ultra-sensitive atomic spin magnetometers.
Xiyuan Chen, Hong Zhang, Sheng Zou
doaj   +1 more source

Design of a Fiber Alkali Vapor Cell for Atomic Magnetometer for Magnetoencephalography Applications

open access: yesPhotonics, 2022
Spin exchange relaxation free (SERF) atomic magnetometer (AM), based on the Larmor precession of alkali atoms, is considered a promising candidate for magnetoencephalography (MEG) systems with the advantages of high sensitivity and no need for cryogenic ...
Xuejing Liu   +5 more
doaj   +1 more source

Drug Monitoring by Optically Pumped Atomic Magnetometer

open access: yesIEEE 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 ...
Yi Ruan   +10 more
doaj   +1 more source

Experimental limit on an exotic parity-odd spin- and velocity-dependent interaction using an optically polarized vapor

open access: yesNature Communications, 2019
Symmetry breaking is an important process in fundamental understanding of matter and dark matter. Here the authors discuss an experimental bound on an exotic parity odd spin- and velocity-dependent interaction between electron and nucleon by using a ...
Young Jin Kim   +3 more
doaj   +1 more source

Progress and applications of quantum precision measurement based on SERF effect

open access: yesFrontiers in Physics, 2022
With the development of quantum precision measurement technology, measurement methods based on magnetic, optical and atomic interactions have started to receive widespread attention.
Yueyang Zhai   +5 more
doaj   +1 more source

Light storage for one second in room-temperature alkali vapor

open access: yesNature Communications, 2018
Storing quantum memories for a long time is important and challenging for quantum communication. Here the authors demonstrate a storage time of about 1 s using spin exchange relaxation free resonance in cesium vapor.
Or Katz, Ofer Firstenberg
doaj   +1 more source

MEMS Non-Magnetic Electric Heating Chip for Spin-Exchange-Relaxation-Free (SERF) Magnetometer

open access: yesIEEE Access, 2019
The alkali metal atoms in spin-exchange-relaxation-free (SERF) atomic magnetometers require high temperature and non-magnetic environment. Increasing the temperature of the alkali metal atoms causes higher atomic density, which can enhance the intensity ...
Liang Xiaoyang   +5 more
doaj   +1 more source

Polarization Measurement of Cs Using the Pump Laser Beam

open access: yesIEEE Photonics Journal, 2017
In the optically pumped systems, the spin polarization of the atoms is generally derived by employing additional modulations, in which way an extra perturbation will be introduced and thus affect the normal operation of the sensors.
Rujie Li, Wei Quan, Jiancheng Fang
doaj   +1 more source

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