Multiplexed synthetic-aperture digital holography
We describe a digital holography imaging system that uses synthetic-aperture techniques for improved spatial resolution. The synthetic aperture is formed by illuminating an object from multiple angles, while a hologram multiplexing scheme is used to collect all of the data within a single camera exposure. We show how the multiplexing can be implemented efficiently with an image-plane hologram recording geometry, present results from a laboratory experiment, and discuss practical trade-offs of the approach.