Results 11 to 20 of about 261 (140)

Performance Characterization and Optimization of a Miniaturized SERF Atomic Magnetometer via Tunable Laser Power [PDF]

Sensors
Spin-exchange relaxation-free (SERF) atomic magnetometers have emerged as highly promising candidates for ultra-weak magnetic field detection, particularly in biomagnetic imaging, owing to their exceptional sensitivity, amenability to miniaturization ...
Peng Shi, Chen Zuo, Qisong Li, Shulin Zhang   +3 more
doaj   +2 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   +2 more sources

Noninvasive detection of audiovisual superadditivity in rat brain by miniaturized SERF magnetometer. [PDF]

PLoS ONE
The neural mechanisms of multisensory integration, particularly the superadditive response where combined sensory inputs elicit neural activity exceeding the sum of unimodal responses, remain a central frontier in perceptual and cognitive neuroscience ...
Kexun Tang, Guanzhong Lu, Peixin Zhang, Hao Wang, Zixuan Wang, Jia Yao, Yi Ruan, Qiang Lin   +7 more
doaj   +2 more sources

Research on the Application of Silver Nanowire-Based Non-Magnetic Transparent Heating Films in SERF Magnetometers [PDF]

Sensors
We propose a non-magnetic transparent heating film based on silver nanowires (Ag-NWs) for application in spin-exchange relaxation-free (SERF) magnetic field measurement devices.
Yi Ge, Yuhan Li, Yang Li, Xuejing Liu, Xiangmei Dong, Xiumin Gao   +5 more
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

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   +3 more sources

Fe-Based Nanocrystalline Magnetic Shielding Cylinder with Subfemtotesla-Level Magnetic Noise. [PDF]

Adv Sci (Weinh)
Shields with low magnetic noise are achieved by integrating Fe‐based nanocrystalline magnetic shielding cylinders into shielding systems based on μ‐metal. Benefiting from high permeability and low loss factor, Fe‐based nanocrystalline magnetic shielding cylinders effectively suppress magnetic noise. Notably, the magnetic shielding cylinder with the ten‐
Shen P, Ma D, Wang K, Li S, Gao Y, Wang P, Yuan F, Chen H, Wang Z, Liu Z, Xie M, Li B, Zhou H, Sun B.   +13 more
europepmc   +2 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   +1 more source

Drug Monitoring by Optically Pumped Atomic Magnetometer

IEEE 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, Xiang He, Limeng Ruan, Fan Liu, Zhiwen Zhang, Jiaqi Weng, Qinying Yan, Guoyi Zhang, Kan Li, Wenqiang Zheng, Qiang Lin   +10 more
doaj   +1 more source

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   +1 more source