Abstract
Past research has demonstrated that a phase-only hologram can be obtained by
down-sampling the intensity image of the object scene prior to the generation of the
hologram. In this Letter, we extend the method to the generation of binary phase-only
holograms. A hologram derived with our proposed method is referred to as a
binary-sampled phase-only hologram (BSPOH). Being different from the parent scheme, we
have adopted an off-axis configuration in the generation of the BSPOH to avoid the
quantization noise, the zeroth-order light, and the conjugate lights. An experimental
evaluation reveals that the reconstructed image of the BSPOH is of good quality, and
only contains slight amount of noise.
© 2015 Chinese Laser Press
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