We utilize a single-photon sensitive electron multiplying CCD camera as a massively parallel coincidence counting apparatus to study spatial entanglement of photon pairs. This allows rapid measurement of transverse spatial entanglement in a fraction of the time required with traditional point-scanning techniques. We apply this technique to quantum experiments on entangled photon pairs: characterization of the evolution of entanglement upon propagation, and measurement of one- and two-photon portions of the state transmitted through non-unitary (lossy) objects, and quantum phase imaging.
Matthew Reichert, Hugo Defienne, Xiaohang Sun, and Jason W. Fleischer, "Quantum imaging and spatial entanglement characterization with an EMCCD camera," Proc. SPIE 10193, Ultrafast Bandgap Photonics II, 1019315 (Presented at SPIE Defense + Security: April 12, 2017; Published: 8 May 2017); https://doi.org/10.1117/12.2264864.
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