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Observation of quantum entanglement using spatial light modulators

Yao, Eric and Franke-Arnold, Sonja and Courtial, Johannes and Padgett, Miles J. and Barnett, Stephen M. (2006) Observation of quantum entanglement using spatial light modulators. Optics Express, 14 (26). pp. 13089-13094. ISSN 1094-4087

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Abstract

We use spatial light modulators to observe the quantum entanglement of down-converted photon pairs. Acting as diffractive optical elements within one of the beams, they can be reconfigured in real time to set the spatial profile of the measured mode. Such configurations are highly applicable to the measurement of orbital angular momentum states or other spatial modes, such as those associated with quantum imaging. (c) 2006 Optical Society of America.