Abstract

We propose color optical scanning holography (OSH) that records red, green, and blue (RGB) holograms of real objects by single scanning. The proposed color OSH composes a RGB multiplexing unit, color time-dependent Fresnel zone plate generation unit, scanning unit, space-integrating photodetection unit, and demultiplexing unit. In the proposed color OSH, RGB beams follow a common path from the multiplexing unit to a photodetector, generating an electric current containing the object’s complex RGB hologram information. In the demultiplexing unit, the complex RGB holograms are extracted and arranged as a complex color hologram. In experiments, we record the complex color hologram of a three-dimensional object composed of RGB transparencies using the color OSH. Numerical reconstruction shows that the recorded hologram contains information about the object’s color as well as the diffracted field from the object.

© 2015 Optical Society of America

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