Results 11 to 20 of about 654,074 (133)

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

Photonics, 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, Shuying Wang, Nuozhou Xu, Bo Li, Jixi Lu, Bangcheng Han   +5 more
doaj   +4 more sources

Transient Heat Transfer Modeling of SERF Co-Magnetometer Atomic Ensemble Based on the Thermoelectric Analogy Method

Photonics
Bias instability is one of the most critical factors in the performance of spin-exchange relaxation-free (SERF) co-magnetometers. Previous studies on SERF co-magnetometers have shown that changes in the atomic ensemble temperature can lead to variations ...
Jiaqi Wu, Feng Liu, Lihong Duan, Shaowei Lv, Xihui Dou, Wei Quan   +5 more
doaj   +4 more sources

Metasurface-integrated elliptically polarized laser-pumped SERF magnetometers [PDF]

Microsystems & Nanoengineering
The emergence of biomagnetism imaging has led to the development of ultrasensitive and compact spin-exchange relaxation-free (SERF) atomic magnetometers that promise high-resolution magnetocardiography (MCG) and magnetoencephalography (MEG).
Zihua Liang, Jinsheng Hu, Peng Zhou, Lu Liu, Gen Hu, Ankang Wang, Mao Ye   +6 more
doaj   +3 more sources

A novel oven structure for improving temperature uniformity of vapor cell in atomic sensors

Results in Physics, 2023
Alkali-metal vapor cells are key elements of atomic sensors. The temperature uniformity in the vapor cell is important for the sensitivity of the atomic sensors especially highly-sensitive SERF atomic magnetometers.
Yanan Gao, Danyue Ma, Shuo Jiang, Yanning Ma, Siran Li, Kun Wang, XuePing Xu   +6 more
doaj   +2 more sources

In-Situ Detection for Atomic Density in the K-Rb-²¹Ne Co-Magnetometer via an Optical Heterodyne Interferometry

Photonics, 2023
The low-frequency fluctuations of the atomic density within the cell can induce the longterm drift of the K-Rb-21Ne spin-exchange relaxation-free (SERF) co-magnetometer output, such that the accurate measurement of in situ atomic density is of great ...
Sixun Liu, Zhuo Wang, Yueyang Zhai
doaj   +2 more sources

Analysis and Correction of the Crosstalk Effect in a Three-Axis SERF Atomic Magnetometer

Photonics, 2022
Three-axis atomic magnetometers have an excellent advantage for determining the complete vector information of a magnetic field to be measured. However, the crosstalk effect, which leads to an error output on one axis owing to a magnetic field on the ...
Yeguang Yan, Jixi Lu, Binquan Zhou, Kun Wang, Ziao Liu, Xiaoyu Li, Weiyi Wang, Gang Liu   +7 more
doaj   +2 more sources

The polarization and the fundamental sensitivity of 39K (133Cs)-85Rb-4He hybrid optical pumping spin exchange relaxation free atomic magnetometers

Scientific Reports, 2017
The hybrid optical pumping spin exchange relaxation free (SERF) atomic magnetometers can realize ultrahigh sensitivity measurement of magnetic field and inertia.
Jian-Hua Liu, Dong-Yang Jing, Liang-Liang Wang, Yang Li, Wei Quan, Jian-Cheng Fang, Wu-Ming Liu   +6 more
doaj   +2 more sources

Spin-exchange relaxation-free magnetometer enhanced by biased weak measurement

Results in Physics
In quantum metrology researching, weak measurement has been widely applied in many aspects, providing weak-value amplification and noise suppressing ability.
Qian Cao, Shang Yu, Liang Xu, Yue-Yang Zhai   +3 more
doaj   +2 more sources

Precise Determination of Magnetic Gradient Relaxation of Coupled Atomic Spin Ensemble in Spin-Exchange Relaxation-Free Co-Magnetometer

Photonics, 2023
Inside a spin-exchange relaxation-free (SERF) co-magnetometer with a high-pressure buffer gas atomic cell, the magnetic field gradient causes the decoherence of atomic spins to produce magnetic-field gradient relaxation.
Xiujie Fang, Kai Wei, Wenfeng Fan, Siran Li, Qian Cao, Wei Quan, Yueyang Zhai, Zhisong Xiao   +7 more
doaj   +2 more sources

Comprehensive analysis of the influence of magnetic field gradients on single-beam SERF atomic magnetometer

Results in Physics
Magnetic field gradients interfere with the coherence of the atomic ensemble and degrade the performance of the spin-exchange relaxation-free (SERF) atomic magnetometer.
Jiajie Li, Ying Liu, Renjie Li, Qian Cao, Tianwei Zhou, Yueyang Zhai   +5 more
doaj   +2 more sources