Quantum imaging and spatial entanglement characterization with an EMCCD camera
Matthew C. Reichert, Hugo Defienne, Xiaohang Sun, Jason W. Fleischer · Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE · 2017
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.