Raman-Ramsey CPT with a grating magneto-optical trap

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Elvin, Rachel and Hoth, Gregory W. and Wright, Michael W. and McGilligan, James P. and Arnold, Aidan S. and Griffin, Paul F. and Riis, Erling; (2018) Raman-Ramsey CPT with a grating magneto-optical trap. In: 2018 European Frequency and Time Forum (EFTF). IEEE, ITA, pp. 61-64. ISBN 9781538656204 (https://doi.org/10.1109/EFTF.2018.8408998)

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Abstract

We describe an experiment which combines cold 87Rb atoms from a grating magneto-optical trap (GMOT) with Lin-perp-Lin coherent population trapping (CPT) and pulsed Ramsey interrogation. The bichromatic fields required for Lin-perp-Lin are generated by combining light from a single external cavity diode laser (ECDL) with an electro-optic modulator (EOM) and an acousto-optic modulator (AOM). With this laser system and the GMOT, we are able to produce Raman-Ramsey fringes using either the F' = 1 or the F' = 2 excited states of the 87 Rb D1 line. As a step towards realising a frequency standard based on the GMOT, we measure the Ramsey fringe amplitude as a function of the magnetic bias field and the excited state. We observe dark state interference with F' = 1 and show that this interference is suppressed with F' = 2, as expected from prior work on CPT with 87Rb in thermal vapour cells.

ORCID iDs

Elvin, Rachel ORCID logoORCID: https://orcid.org/0000-0003-0450-4727, Hoth, Gregory W., Wright, Michael W., McGilligan, James P. ORCID logoORCID: https://orcid.org/0000-0002-6514-9696, Arnold, Aidan S. ORCID logoORCID: https://orcid.org/0000-0001-7084-6958, Griffin, Paul F. ORCID logoORCID: https://orcid.org/0000-0002-0134-7554 and Riis, Erling ORCID logoORCID: https://orcid.org/0000-0002-3225-5302;
  • Item type:Book Section
    ID code:65374
    Dates:
    Date
    Event
    12 July 2018
    Published
    9 April 2018
    Accepted
    Notes:© 2018 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
    Subjects:Technology > Electrical engineering. Electronics Nuclear engineering
    Department:Faculty of Science > Physics
    Depositing user: Pure Administrator
    Date deposited:05 Sep 2018 14:03
    Last modified:13 Nov 2024 01:26
    Related URLs:
    URI:https://strathprints.strath.ac.uk/id/eprint/65374
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