Free-induction-decay magnetometer based on a microfabricated Cs vapor cell

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Hunter, D. and Piccolomo, S. and Pritchard, J. D. and Brockie, N. L. and Dyer, T. E. and Riis, E. (2018) Free-induction-decay magnetometer based on a microfabricated Cs vapor cell. Physical Review Applied (10). 014002. ISSN 2331-7043 (https://doi.org/10.1103/PhysRevApplied.10.014002)

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Abstract

We describe an optically pumped Cs magnetometer containing a 1.5 mm thick microfabricated vapor cell with nitrogen buffer gas operating in a free-induction-decay (FID) configuration. This allows us to monitor the free Larmor precession of the spin coherent Cs atoms by separating the pump and probe phases in the time domain. A single light pulse can sufficiently polarize the atomic sample however, synchronous modulation of the light field actively drives the precession and maximizes the induced spin coherence. Both amplitude and frequency modulation have been implemented with noise floors of 3 pT / √ Hz and 16 pT / √ Hz respectively within the Nyquist limited bandwidth of 500 Hz .

ORCID iDs

Hunter, D. ORCID logoORCID: https://orcid.org/0000-0003-4177-6027, Piccolomo, S. ORCID logoORCID: https://orcid.org/0000-0002-7579-1471, Pritchard, J. D. ORCID logoORCID: https://orcid.org/0000-0003-2172-7340, Brockie, N. L., Dyer, T. E. and Riis, E. ORCID logoORCID: https://orcid.org/0000-0002-3225-5302;
  • Item type:Article
    ID code:64212
    Dates:
    Date
    Event
    5 July 2018
    Published
    5 July 2018
    Published Online
    15 May 2018
    Accepted
    Notes:Article corrected on 6 July 2018 to include link in data statement
    Subjects:Science > Physics
    Department:Faculty of Science > Physics
    Depositing user: Pure Administrator
    Date deposited:04 Jun 2018 08:48
    Last modified:13 Dec 2024 11:50
    Related URLs:
    URI:https://strathprints.strath.ac.uk/id/eprint/64212
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