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arXiv · quant-ph/0311147

Entangled-Photon Imaging of a Pure Phase Object

Ayman F. Abouraddy·Patrick R. Stone·Alexander V. Sergienko·Bahaa E. A. Saleh·Malvin C. Teich
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Abstract

We demonstrate experimentally and theoretically that a coherent image of a pure phase object may be obtained by use of a spatially incoherent illumination beam. This is accomplished by employing a two-beam source of entangled photons generated by spontaneous parametric down-conversion. Though each of the beams is, in and of itself, spatially incoherent, the pair of beams exhibits higher-order inter-beam coherence. One of the beams probes the phase object while the other is scanned. The image is recorded by measuring the photon coincidence rate using a photon-counting detector in each beam. Using a reflection configuration, we successfully imaged a phase object implemented by a MEMS micro-mirror array. The experimental results are in accord with theoretical predictions.

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Ayman F. Abouraddy, Patrick R. Stone, Alexander V. Sergienko, Bahaa E. A. Saleh, Malvin C. Teich. 2003-11-21. Entangled-Photon Imaging of a Pure Phase Object. https://doi.org/10.1103/physrevlett.93.213903

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