Results 31 to 40 of about 261 (140)

Parameter Modeling Analysis and Experimental Verification on Magnetic Shielding Cylinder of All‐Optical Atomic Spin Magnetometer

Journal of Sensors, Volume 2015, Issue 1, 2015., 2015
The ultrahigh sensitivity atomic spin magnetometer as the magnetic measurement sensor has received much concern. The performance of the magnetic shielding cylinder is one of the key factors constraining the atomic spin magnetometer’s sensitivity. In order to effectively improve the performances of the magnetic shielding, the parameter optimization ...
Hong Zhang, Sheng Zou, Xi-Yuan Chen, Wei Quan, Jesus Corres   +4 more
wiley   +1 more source

High Sensitivity Optically Pumped Quantum Magnetometer

The Scientific World Journal, Volume 2013, Issue 1, 2013., 2013
Quantum magnetometers based on optical pumping can achieve sensitivity as high as what SQUID‐based devices can attain. In this paper, we discuss the principle of operation and the optimal design of an optically pumped quantum magnetometer. The ultimate intrinsic sensitivity is calculated showing that optimal performance of the magnetometer is attained ...
Valentina Tiporlini, Kamal Alameh, C. Chen, D. Dong, M. Jiang, L.-C. Wang   +5 more
wiley   +1 more source

Structure optimization of non-magnetic electric heating film for spin exchange relaxation free magnetometer

Sensors International, 2023
Spin exchange relaxation free (SERF) atomic magnetometer is one of the most sensitive magnetometers. High temperature and a non-magnetic environment are two key conditions to achieve ultra-high sensitivity. In this paper, a non-magnetic heating film with
Xiaofei Liu, Jing Zhu, Shuai Wang, Lianqing Zhu   +3 more
doaj   +1 more source

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

Photonics, 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, Yanhui Hu, Yang Li, Xudong Wu, Min Chang, Xuedian Zhang   +5 more
doaj   +1 more source

Influence of laser heating temperature characteristics on SERF atomic magnetometer

Optics Express
The SERF atomic magnetometer typically operates in a high-temperature and zero-magnetic-field regime. Among common heating methods, laser heating is a promising method since it is magnetically clean and stable. In this work, we for the first time introduce an orthogonal laser heating configuration to improve the temperature ...
Zhiqiang Zheng, Feng Chen, Zhou Zhou, Chen Wei, Zhonghua Ou, Huimin Yue, Yong Liu   +6 more
openaire   +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   +1 more source

Sub‐Ensemble Isolation in SERF Magnetometry Enabled by Micrometer‐Scale Polarization Control

Nanophotonics, Volume 15, Issue 14, 27 July 2026.
Inter‐channel crosstalk caused by atomic diffusion fundamentally limits the spatial resolution of single‐cell multi‐channel SERF magnetometers. In this work, a spatial‐variant polarization metasurface is employed to achieve effective sub‐ensemble isolation within a single SERF atomic ensemble, which enables the suppression of inter‐channel crosstalk ...
Yuhao Zhang, Zihua Liang, Lu Liu, Jinsheng Hu, Peng Zhou, Gen Hu, Gaopu Hou, Mao Ye   +7 more
wiley   +1 more source

Single beam Cs-Ne SERF atomic magnetometer with the laser power differential method

Optics Express, 2022
We describe a single beam compact spin exchange relaxation free (SERF) magnetometer whose configuration is simple and compatible with the silicon-glass bonding micro-machining method. Due to the small size of the vapor cell utilized in a miniature atomic magnetometer, the wall relaxation could not be neglected.
Yao Chen, Libo Zhao, Ning Zhang, Mingzhi Yu, Yintao Ma, Xiangguang Han, Man Zhao, Qijing Lin, Ping Yang, Zhuangde Jiang   +9 more
openaire   +2 more sources

Miniaturized Mechanical Antennas: Advances, Challenges, and Future Directions

Advanced Physics Research, Volume 4, Issue 1, January 2025.
Miniaturized mechanical antennas generate electromagnetic waves by mechanical movement of magnetoelectric materials, permanent magnets, electrets, or piezoelectric materials, and have dimensions several orders of magnitude smaller than their electrical compartments.
Hao Ren
wiley   +1 more source

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

Sensors, 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