A miniaturized spin-exchange relaxation-free atomic magnetometer based on uniform light field

被引：0
作者：
Li, Jiajie [1 ,2 ]
Fang, Xiujie [2 ,3 ]
Li, Renjie [1 ,2 ]
Chen, Baodong [1 ,2 ]
Zhai, Yueyang [1 ,2 ]
Liu, Ying [1 ,2 ]
机构：
[1] Beihang Univ, Sch Instrumentat & Optoelect Engn, Key Lab Ultraweak Magnet Field Measurement Technol, Minist Educ, Beijing 100191, Peoples R China
[2] Beihang Univ, Hangzhou Innovat Inst, Zhejiang Prov Key Lab Ultraweak Magnet Field Space, Hangzhou 310051, Peoples R China
[3] Beihang Univ, Sch Phys, Beijing 100191, Peoples R China
来源：
CHINESE PHYSICS B | 2023年 / 32卷 / 05期
基金：
中国国家自然科学基金;
关键词：
atomic magnetometer; uniform light field; polarization; sensitivity; OPTIMIZATION;
D O I：
10.1088/1674-1056/aca7f2
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
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 the volume of the sensor is also reduced. This scheme makes the magnetometer have better sensitivity when the detected light intensity is less than 3.16 mW/cm(2) at 120 degrees C. When the temperature rises to 150 degrees C the sensitivity under the action of uniform light field is 18.5 fT/Hz(1/2). The bandwidth of the sensor remains at the original level and meets application needs. The proposed structure improves transverse polarization uniformity within the miniaturized sensor, which is ideal for the magnetoencephalography and magnetocardiography imaging systems.
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页数：6
相关论文
共 39 条
  • [1] Allred J., 2002, APPL PHYS LETT, V89
  • [2] Theory of spin-exchange optical pumping of 3He and 129Xe
    Appelt, S
    Baranga, AB
    Erickson, CJ
    Romalis, MV
    Young, AR
    Happer, W
    [J]. PHYSICAL REVIEW A, 1998, 58 (02): : 1412 - 1439
  • [3] Cross-Axis projection error in optically pumped magnetometers and its implication for magnetoencephalography systems
    Borna, Amir
    Iivanainen, Joonas
    Carter, Tony R.
    McKay, Jim
    Taulu, Samu
    Stephen, Julia
    Schwindt, Peter D. D.
    [J]. NEUROIMAGE, 2022, 247
  • [4] Shift of zero-field level-crossing resonance in the Cs D1 line and its use in vector magnetometry
    Brazhnikov, Denis
    Ignatovich, Stepan
    Mesenzova, Irina
    Novokreshchenov, Alexey
    Goncharov, Andrei
    [J]. OPTICS LETTERS, 2020, 45 (12) : 3309 - 3312
  • [5] Optimization of beam shaping for ultrasensitive inertial measurement using a phase-only spatial light modulator
    Chen, Xu
    Fang, Xiujie
    Ma, Danyue
    Liu, Ying
    Cao, Li
    Zhai, Yueyang
    [J]. APPLIED OPTICS, 2022, 61 (06) : C55 - C64
  • [6] Four-channel optically pumped atomic magnetometer for magnetoencephalography
    Colombo, Anthony P.
    Carter, Tony R.
    Borna, Amir
    Jau, Yuan-Yu
    Johnson, Cort N.
    Dagel, Amber L.
    Schwindt, Peter D. D.
    [J]. OPTICS EXPRESS, 2016, 24 (14): : 15403 - 15416
  • [7] Elzenheimer E., 2020, IEEE T NEURAL SYST R, V22, P1018
  • [8] In-situ measurement of magnetic field gradient in a magnetic shield by a spin-exchange relaxation-free magnetometer
    Fang Jian-Cheng
    Wang Tao
    Zhang Hong
    Li Yang
    Cai Hong-Wei
    [J]. CHINESE PHYSICS B, 2015, 24 (06)
  • [9] Production of hyperpolarized xenon in a static pump cell: Numerical simulations and experiments
    Fink, A
    Baumer, D
    Brunner, E
    [J]. PHYSICAL REVIEW A, 2005, 72 (05):
  • [10] Optimization of continuous flow pump cells used for the production of hyperpolarized 129Xe:: A theoretical study
    Fink, A.
    Brunner, E.
    [J]. APPLIED PHYSICS B-LASERS AND OPTICS, 2007, 89 (01): : 65 - 71
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