Tatsuki TAHARA, Yasuhiro AWATSUJI^*, Kenzo NISHIO¹, Shogo URA, Toshihiro KUBOTA², and Osamu MATOBA³

Graduate School of Science and Technology, Kyoto Institute of Technology, Matsugasaki, Sakyo-ku, Kyoto 606-8585, Japan
¹Advanced Technology Center, Kyoto Institute of Technology, Matsugasaki, Sakyo-ku, Kyoto 606-8585, Japan
²Kubota Holography Laboratory Corporation, 34-1-609 Nishihata, Ogura-cho, Uji, Kyoto 611-0042, Japan
³Graduate School of System Informatics, Kobe University, 1-1 Rokkodai, Nada-ku, Kobe 657-8501, Japan

(Received August 1, 2010; Accepted September 11, 2010)

We comparatively analyzed and quantitatively evaluated the field of view and the viewing zone of single-shot phase-shifting 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.

Key words: holography, digital holography, holographic interferometry, phase-shifting interferometry

^*E-mail address: awatsuji@kit.ac.jp