We propose parallel three-step phase-shifting digital holography as a technique capable of noiseless instantaneous measurement of three-dimensional objects based on phase-shifting interferometry. The proposed digital holography carries out three-step phase shifting at the same time by using a phase-shifting array device located in the reference beam. The array device has a periodic three-step phase distribution, and its configuration is simplified compared with that required for conventional parallel phase-shifting digital holography. Therefore the optical system of the proposed parallel phase-shifting digital holography is more suitable for the realization of the proposed holography. We conduct both a numerical simulation and a preliminary experiment. The results of the simulation and experiment agree well with those of the conventional phase-shifting method and are superior to the results obtained by conventional digital holography by using the Fresnel transform alone. Thus the effectiveness of the proposed technique is verified.
© 2006 Optical Society of AmericaFull Article | PDF Article
Yasuhiro Awatsuji, Masaki Sasada, Atsushi Fujii, and Toshihiro Kubota
Appl. Opt. 45(5) 968-974 (2006)
Yasuhiro Awatsuji, Tatsuki Tahara, Atsushi Kaneko, Takamasa Koyama, Kenzo Nishio, Shogo Ura, Toshihiro Kubota, and Osamu Matoba
Appl. Opt. 47(19) D183-D189 (2008)
Yasuhiro Awatsuji, Takamasa Koyama, Tatsuki Tahara, Kenichi Ito, Yuki Shimozato, Atsushi Kaneko, Kenzo Nishio, Shogo Ura, Toshihiro Kubota, and Osamu Matoba
Appl. Opt. 48(34) H160-H167 (2009)