Abstract

The influence of the phase distribution over the object plane on the quality of reconstructed images is investigated in the context of synthesizing hologram-projectors for two-dimensional binary transparencies. The best image quality, estimated by both the number of possible thresholding levels and the depth of field of the reconstructed image, was achieved using the phase distribution corresponding to the irradiation of an object transparency by a homocentric beam convergent at the center of the synthesized hologram aperture. A numerical simulation demonstrates that the enhancement of the reconstructed image quality occurs when the object is illuminated with a convergent beam irrespective of the object sampling period used to synthesize the hologram. Recommendations on the choice of parameters for the synthesis of hologram-projectors are provided herein.

© 2020 Optical Society of America

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