Formação de imagem com fótons não detectados

Abstract

In this work we performed a review about induced temporal coherence. We approached two ways to induce it between two modes of the eld generated in parametric down conversion, in two dierent crystals. The rst one resort to the indistinguishability between the two spontaneous parametric generations, while the second one explores the process of stimulated parametric generation.Finally, we studied how induced coherence may be used for the imagingwith photons which never interacted with the object. It was made througha theoretical review of the quantum case and a suggestion of an analogous experimental realization, using classical elds from the stimulated parametric down conversion. This proposal shows that the phenomena known as "quantum imaging with undetected photons"has a classical version.