Zobrazeno 1 - 10
of 33
pro vyhledávání: '"Xiujie Fang"'
Publikováno v:
Results in Physics, Vol 49, Iss , Pp 106546- (2023)
An optically pumped magnetometer (OPM) for three-axis magnetic field measurement is demonstrated based on dual-pump polarization in a time-sharing regime. By detecting light absorption, each pump beam can achieve high-sensitive transverse measurement
Externí odkaz:
https://doaj.org/article/75a85338696a431795f58e4084ee0c17
Publikováno v:
Photonics, Vol 10, Iss 4, p 400 (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. This paper presents a new met
Externí odkaz:
https://doaj.org/article/ed996ef2135648f7aa5a106dec75ff9c
Publikováno v:
Photonics, Vol 10, Iss 3, p 332 (2023)
The measurement of atomic spin polarization distribution in spin-exchange relaxation free (SERF) magnetometer is an important topic for improving the sensitivity and consistency of multi-channel magnetic field measurement applications. A novel spin p
Externí odkaz:
https://doaj.org/article/ab02ed9432ad4650ab97fe24c852dbec
Publikováno v:
Materials, Vol 15, Iss 23, p 8704 (2022)
The magnetic noise generated by the ferrite magnetic shield affects the performance of ultra-sensitive atomic sensors. Differential measurement can effectively suppress the influence of common-mode (CM) magnetic noise, but the limit of suppression ca
Externí odkaz:
https://doaj.org/article/0a0e85bda6eb498f9ca8e9ad8ddb3f8f
Publikováno v:
Materials, Vol 15, Iss 19, p 6680 (2022)
This study proposes a high-performance magnetic shielding structure composed of MnZn ferrite and mu-metal film. The use of the mu-metal film with a high magnetic permeability restrains the decrease in the magnetic shielding coefficient caused by the
Externí odkaz:
https://doaj.org/article/66ecd099f0ed49ccbc4bb4f49f4fbd91
Publikováno v:
IEEE Transactions on Industrial Electronics. 69:991-998
Magnetic field shields are important for electronic equipment, ultrahigh-sensitivity sensors, and electrical instruments. For ultrahigh-sensitivity atomic sensors, in particular, ferrite shields with low intrinsic magnetic noise are widely used. In t
Autor:
Kai Wei, Tian Zhao, Xiujie Fang, Zitong Xu, Chang Liu, Qian Cao, Arne Wickenbrock, Yanhui Hu, Wei Ji, Jiancheng Fang, Dmitry Budker
Achieving high energy resolution in spin systems is important for fundamental physics research and precision measurements, with alkali-noble-gas comagnetometers being among the best available sensors. We found a new relaxation mechanism in such devic
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ff1ebe4c482c1523f913e83fce681b56
http://arxiv.org/abs/2210.09027
http://arxiv.org/abs/2210.09027
Publikováno v:
Optics express. 30(15)
We investigate the effects of the density ratio of K-Rb hybrid cells on the alkali metal-noble gas comagnetometers. Bloch equations simplified with the density ratio and average-pumping-rate model are presented for numerical simulation, which simplif
Publikováno v:
Chinese Physics B. 32:053201
We experimentally study the dynamic characteristics of a miniaturized spin-exchange relaxation-free (SERF) magnetometer based on uniform light field. The ceramic ferrule is used to expand the Gaussian beam to improve light intensity uniformity, while
Publikováno v:
IEEE Sensors Journal. 21:5879-5885
Hybrid spin-exchange optical pumping is widely used in precision measurements and tests of fundamental physics. In these researches and applications, accurate measurement of the spin polarizations of hybrid alkali atoms and noble gas atoms has a sign