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On a Method of Conversion and Reconversion of Spatial into Temporal Frequencies

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Abstract

A method is presented for recording into the temporal domain the information contained in a light wavefront. This is achieved by making the wavefront interfere with the field from a moving point-light source and integrating the intensity of the interference pattern in space with an extended photodetector. In the inverse process, the time dependent signal is converted, with a suitable arrangement, in a hologram. Possible applications to holograms of steady or moving objects are considered. An experiment supporting the theoretical conclusions is presented.

© 1968 Optical Society of America

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