Acta Optica Sinica, Volume. 6, Issue 1, 87(1986)
Space-domain filtering for computer generated hologram
Reducing carrying frequencies in computer generated holograms ia very important in constructing the graphs. We propose a new off-axis filtering method in the space domain, which is suitable for wavefronts with quadric term. In some cases, by using this method the carrying frequency can be reduced to about 1/3 of that used in conventional frequency domain filtering. Two sets of preliminary experimental results are shown.
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Lu DA, Wu MINXIAN, CHIN KUOFAN. Space-domain filtering for computer generated hologram[J]. Acta Optica Sinica, 1986, 6(1): 87