| Abstract: | The interface patterns obtained using doubly-exposed Gabor holograms of rough objects undergoing small axial displacement are investigated by treating the resulting speckle patterns as a system such as an array of slits. The reconstructed images, which are related to each other as separate identical diffusers that are correlated, give rise to an interference phenomenon in their Fourier plane. The resultant intensity is modulated by a ring system, the geometrical characteristics of which are dependent on the geometry of the arrangement. New formulae are obtained and their validity is substantiated by experiments. |
