Abstract

We report the ghost-image reconstruction of a diffuse-reflecting object consisting of two strips of non-glossy aluminum foil separated by an absorbing band. The physics of the experiment is basically the same as that of the toy-soldier reconstruction published by Shih et al.; but the greater simplicity of the double-strip allows to perform numerical simulations in which the relevant parameters can be varied in a wide range. The theoretical analysis is based on classical optics and predicts results in agreement with experiments; it adds support to the view that thermal light ghost imaging, based on diffuse reflection, belongs to a class of experiments interpretable in terms of signal processing applied to classical optics.

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