Optomechanical self-structuring in a cold atomic gas

Labeyrie, G. and Tesio, Enrico and Monteiro Gomes, Pedro and Oppo, Gian-Luca and Firth, William and Robb, Gordon and Arnold, Aidan and Kaiser, Robin and Ackemann, Thorsten (2014) Optomechanical self-structuring in a cold atomic gas. Nature Photonics, 8 (4). pp. 321-325. ISSN 1749-4885

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    Abstract

    The rapidly developing field of optomechanics aims at the com- bined control of optical and mechanical modes1–3. In cold atoms, the spontaneous emergence of spatial structures due to opto- mechanical back-action has been observed in one dimension in optical cavities3–8 or highly anisotropic samples9. Extensions to higher dimensions that aim to exploit multimode configurations have been suggested theoretically10–16. Here, we describe a simple experiment with many spatial degrees of freedom, in which two continuous symmetries—rotation and translation in the plane orthogonal to a pump beam axis—are spontaneously broken. We observe the simultaneous long- range spatial structuring (with hexagonal symmetry) of the density of a cold atomic cloud and of the pump optical field, with adjustable length scale. Being based on coherent phenom- ena (diffraction and the dipole force), this scheme can poten- tially be extended to quantum degenerate gases.

    Creators(s): Labeyrie, G., Tesio, Enrico, Monteiro Gomes, Pedro ORCID logoORCID: https://orcid.org/0000-0002-8417-1231, Oppo, Gian-Luca ORCID logoORCID: https://orcid.org/0000-0002-5376-4309, Firth, William, Robb, Gordon ORCID logoORCID: https://orcid.org/0000-0002-3004-5926, Arnold, Aidan ORCID logoORCID: https://orcid.org/0000-0001-7084-6958, Kaiser, Robin and Ackemann, Thorsten ORCID logoORCID: https://orcid.org/0000-0003-2727-7395;
    Item type:Article
    ID code:47879
    Keywords:optomechanics, optical cavities, quantum degenerate gases, Optics. Light, Atomic and Molecular Physics, and Optics, Electronic, Optical and Magnetic Materials
    Subjects:Science > Physics > Optics. Light
    Department:Faculty of Science > Physics
    Depositing user: Pure Administrator
    Date deposited:07 May 2014 12:13
    Last modified:20 Nov 2020 04:10
    Related URLs:
    URI:https://strathprints.strath.ac.uk/id/eprint/47879
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