Comparative analysis and quantitative evaluation of the field of view and the viewing zone of single-shot phase-shifting digital holography using space-division multiplexing |
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| Authors: | Tatsuki Tahara Yasuhiro Awatsuji Kenzo Nishio Shogo Ura Toshihiro Kubota Osamu Matoba |
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| Institution: | (1) Graduate School of Science and Technology, Kyoto Institute of Technology, Matsugasaki, Sakyo-ku, Kyoto 606-8585, Japan;(2) Advanced Technology Center, Kyoto Institute of Technology, Matsugasaki, Sakyo-ku, Kyoto 606-8585, Japan;(3) Kubota Holography Laboratory Corporation, Nishihata 34-1-609, Ogura-cho, Uji, Kyoto 611-0042, Japan;(4) Graduate School of System Informatics, Kobe University, Rokkodai 1-1, Nada-ku, Kobe 657-8501, Japan; |
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| Abstract: | We comparatively analyzed and quantitatively evaluated the field of view and the viewing zone of single-shot phaseshifting
digital holography that uses space-division multiplexing, for the first time. We formulated the sampling intervals in the
techniques in which the phase of the reference wave is spatially divided into two and four steps, and numerically simulated
the areas. It was clarified that each area of the spatial two-step phase-shifting technique was twice as wide as that of the
spatial four-step phase-shifting technique. We also experimentally investigated the areas. The ghost appeared for the spatial
four-step technique when the object was between the boundary of the field of view of the spatial two-step technique and that
of the spatial four-step technique, but did not appear for the spatial two-step technique. |
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