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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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.
| Author(s): | Jack, B., Leach, J., Romero, J., Franke-Arnold, S., Ritsch-Marte, M., Barnett, S.M. and Padgett, M.J. | Item type: | Article |
|---|---|
| ID code: | 18986 |
| 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: | 13 Dec 2019 05:30 |
| URI: | https://strathprints.strath.ac.uk/id/eprint/18986 |
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