8 February 2010 Quantum imaging and orbital angular momentum
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Proceedings Volume 7613, Complex Light and Optical Forces IV; 76130L (2010) https://doi.org/10.1117/12.845250
Event: SPIE OPTO, 2010, San Francisco, California, United States
Abstract
We report a violation of the CHSH inequality for ghost-images. This is achieved by using two spatially separated phase modulators within the context of a two-photon parametric down-conversion experiment. 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 the CHSH Bell-type inequality for an OAM subspace, thereby unambiguously revealing the quantum nature of our ghost-imaging arrangement.
© (2010) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Jonathan Leach, Jonathan Leach, Barry Jack, Barry Jack, Jacqui Romero, Jacqui Romero, Dave Ireland, Dave Ireland, Sonja Franke-Arnold, Sonja Franke-Arnold, Steve Barnett, Steve Barnett, Miles Padgett, Miles Padgett, } "Quantum imaging and orbital angular momentum", Proc. SPIE 7613, Complex Light and Optical Forces IV, 76130L (8 February 2010); doi: 10.1117/12.845250; https://doi.org/10.1117/12.845250
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