Fortschritte der Physik

Correlated imaging with macroscopic fields

E. Brambilla, A. Gatti, Morten Bache, Luigi A. Lugiato

Published Oct 11, 2004• 5 citations

Abstract

Abstract We demonstrate analytically that correlated imaging in the regime of large photon number can be implemented using both a classical and an entangled source. The classically correlated beams are obtained by dividing thermal radiation by a beam splitter while entangled beams are obtained through parametric down‐conversion. By treating the two system in parallel, a formal analogy is outlined between the two cases showing that classical beams can mimic qualitatively all the imaging features of the entangled beams. We also propose a method to improve substantially the imaging performances of correlated imaging which is based on homodyne detection combined with spatial averages.

DOI: 10.1002/prop.200410178

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