Multiple Imaging by Means of Holograms of Correlated Objects

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Abstract
A new type of hologram capable of multiple imaging or reconstructing point images is proposed. These holograms are produced by using extended but correlated signal and reference sources in the recording process. The theory of multiple imaging using spatially incoherent light is developed. Some preliminary experiments are described, demonstrating that a resolution in excess of 110 line pairs/mm can be obtained in the multiplied images, even if sources of 5-mm diam were used in the recording process.