Magnetic phase diagram of light-mediated spin structuring in cold atoms

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Labeyrie, G. and Krešić, I. and Robb, G. R. M. and Oppo, G.-L. and Kaiser, R. and Ackemann, T. (2018) Magnetic phase diagram of light-mediated spin structuring in cold atoms. Optica, 5 (10). pp. 1322-1328. ISSN 1899-7015 (https://doi.org/10.1364/OPTICA.5.001322)

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Abstract

Self-organization in driven dissipative systems is an active field of research with implications in physics, chemistry, and biology. When applying a red-detuned retroreflected laser beam to a large cloud of cold atoms, we observe the spontaneous formation of 2D structures in the transverse plane corresponding to high contrast spatial modulations of both light field and atomic spins. By applying a weak magnetic field, we explore the rich resulting phase space and identify specific phases associated with both dipolar and quadrupolar terms of the atomic magnetic moment. In particular, we demonstrate spontaneous structures in optically induced ground state coherences representing magnetic quadrupoles. Our results illustrate the wealth of behavior exhibited by laser-driven atomic media with complex level structure under optical feedback.

ORCID iDs

Labeyrie, G., Krešić, I. ORCID logoORCID: https://orcid.org/0000-0001-8349-4605, Robb, G. R. M. ORCID logoORCID: https://orcid.org/0000-0002-3004-5926, Oppo, G.-L. ORCID logoORCID: https://orcid.org/0000-0002-5376-4309, Kaiser, R. and Ackemann, T. ORCID logoORCID: https://orcid.org/0000-0003-2727-7395;
  • Item type:Article
    ID code:66168
    Dates:
    Date
    Event
    18 October 2018
    Published
    8 September 2018
    Accepted
    26 June 2018
    Submitted
    Notes:© 2018 Optical Society of America under the terms of the OSA Open Access Publishing Agreement. Users may use, reuse, and build upon the article, or use the article for text or data mining, so long as such uses are for non-commercial purposes and appropriate attribution is maintained. All other rights are reserved.
    Subjects:Science > Physics
    Department:Faculty of Science > Physics
    Depositing user: Pure Administrator
    Date deposited:20 Nov 2018 09:34
    Last modified:28 Nov 2024 01:16
    Related URLs:
    URI:https://strathprints.strath.ac.uk/id/eprint/66168
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