Holographic ghost imaging and the violation of a bell inequality

Jack, B. and Leach, J. and Romero, J. and Franke-Arnold, S. and Ritsch-Marte, M. and Barnett, S.M. and Padgett, M.J. (2009) Holographic ghost imaging and the violation of a bell inequality. Physical Review Letters, 103 (8). 083602-1-083602-4. ISSN 0031-9007

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Abstract

We demonstrate the contrast enhancement of images within a ghost-imaging system by use of nonlocal phase filters. We use parametric down-conversion as the two-photon light source and two separated phase modulators, in the signal and idler arms which represent different phase filters and objects, respectively. We obtain edge enhanced images as a direct consequence of the quantum correlations in the orbital angular momentum (OAM) of the down-converted photon pairs. For phase objects, with differently orientated edges, we show a violation of a Bell-type inequality for an OAM subspace, thereby unambiguously revealing the quantum nature of our ghost-imaging arrangement.

  • Item type:Article
    ID code:18986
    Dates:
    Date
    Event
    21 August 2009
    Published
    Keywords:holographic ghost imaging, bell inequality, phase filters, Optics. Light, Physics and Astronomy(all)
    Subjects:Science > Physics > Optics. Light
    Department:Faculty of Science > Physics
    Depositing user: Strathprints Administrator
    Date deposited:22 Jun 2010 13:12
    Last modified:09 Apr 2021 03:23
    URI:https://strathprints.strath.ac.uk/id/eprint/18986
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