Results 1 to 10 of about 261 (140)

A new wearable multichannel magnetocardiogram system with a SERF atomic magnetometer array [PDF]

open access: yesScientific Reports, 2021
In this study, a wearable multichannel human magnetocardiogram (MCG) system based on a spin exchange relaxation-free regime (SERF) magnetometer array is developed.
Yanfei Yang   +6 more
doaj   +5 more sources

Ultrasensitive SERF atomic magnetometer with a miniaturized hybrid vapor cell [PDF]

open access: yesMicrosystems & Nanoengineering
The chip-scale hybrid optical pumping spin-exchange relaxation-free (SERF) atomic magnetometer with a single-beam arrangement has prominent applications in biomagnetic measurements because of its outstanding features, including ultrahigh sensitivity, an ...
Yintao Ma   +10 more
doaj   +4 more sources

Suppression of thermal coupling noise in the SERF atomic co-magnetometer

open access: yesResults in Physics, 2023
Heating the alkali metal vapor cell to obtain high atomic density is a prerequisite for realizing the high-precision measurement for spin-exchange relaxation-free (SERF) co-magnetometer.
Jiasen Ruan   +6 more
doaj   +4 more sources

Suppression Method of AC-Stark Shift in SERF Atomic Magnetometer [PDF]

open access: yesIEEE Photonics Journal, 2018
In a spin-exchange-relaxation-free (SERF) atomic magnetometer with ultrahigh sensitivity, the ac-Stark shift generated by circularly polarized light results in the attenuation of the SERF atomic magnetometer response, and the virtual magnetic field ...
Yang Li   +5 more
doaj   +5 more sources

Femtotesla atomic magnetometer for zero- and ultralow-field nuclear magnetic resonance [PDF]

open access: yesMagnetic Resonance Letters
Zero- and ultralow-field nuclear magnetic resonance (ZULF NMR) has experienced rapid development and provides an excellent tool for diverse research fields ranging from materials science and quantum information processing to fundamental physics.
Taizhou Hong   +5 more
doaj   +2 more sources

An FSM-Assisted High-Accuracy Autonomous Magnetic Compensation Optimization Method for Dual-Channel SERF Magnetometers Used in Weak Biomagnetic Signal Measurement [PDF]

open access: yesSensors
Atomic magnetometers based on the spin-exchange relaxation-free (SERF) regime have broad applications in bio-magnetic measurement due to their high sensitivity and miniaturized size.
Xinran Tian   +3 more
doaj   +2 more sources

The suppression of the probe laser pumping effect in SERF atomic magnetometer

open access: yesFrontiers in Physics, 2023
Introduction: A spin exchange relaxation free atomic magnetometer, as an ultra-highly sensitive magnetic field sensor, is limited by the performance of the probe laser system.
Qian Cao   +5 more
doaj   +2 more sources

Analysis and Suppression of the Cross-Axis Coupling Effect for Dual-Beam SERF Atomic Magnetometer

open access: yesPhotonics, 2022
Spin-exchange relaxation-free (SERF) atomic magnetometers operated under a near-zero magnetic field are used for vector magnetic field measurements with high sensitivity.
Fei Lu   +5 more
doaj   +3 more sources

Multilayer Spindle Shaped Magnetic Shielding Device for SERF Atomic Magnetometer Application [PDF]

open access: yesIEEE Access, 2020
Most of shielding devices currently used for SERF magnetometers are multilayer cylindrical magnetic shielding barrels. This article studies a new multilayer spindle shaped magnetic shielding barrel for the spin exchange relaxation free (SERF ...
Zhengkun Fan   +6 more
doaj   +2 more sources

Fiber-Coupled Fully Integrated Spin-Exchange Relaxation-Free Atomic Magnetometer for Functional Biomagnetic Measurements [PDF]

open access: yesSensors
The atomic magnetometer (AM), operating within the spin-exchange relaxation-free (SERF) regime, boasts numerous advantageous qualities, including ultrahigh sensitivity, exceptional spatial resolution, and minimal power consumption.
Wennuo Jiang   +3 more
doaj   +2 more sources

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