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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: James C. Wyant
  • Vol. 47, Iss. 19 — Jul. 1, 2008
  • pp: D183–D189

Parallel two-step phase-shifting digital holography

Yasuhiro Awatsuji, Tatsuki Tahara, Atsushi Kaneko, Takamasa Koyama, Kenzo Nishio, Shogo Ura, Toshihiro Kubota, and Osamu Matoba  »View Author Affiliations


Applied Optics, Vol. 47, Issue 19, pp. D183-D189 (2008)
http://dx.doi.org/10.1364/AO.47.00D183


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Abstract

We propose a parallel two-step phase-shifting digital holography technique capable of instantaneous measurement of three-dimensional objects, with a view toward measurement of dynamically moving objects. The technique is based on phase-shifting interferometry. The proposed technique carries out the two-step phase-shifting method at one time and can be optically implemented by using a phase-shifting array device located in the reference beam. The array device has a periodic two-step phase distribution, and its configuration is simplified compared with that required for three-step and four-step parallel phase-shifting digital holographies. Therefore the optical system of the proposed technique is more suitable for the realization of a parallel phase-shifting digital holography system. We conduct both a numerical simulation and a preliminary experiment in the proposed technique. The results of the simulation and the experiment agree well with those of sequential phase-shifting digital holography, and results are superior to those obtained by conventional digital holography using the Fresnel transform alone. Thus the effectiveness of the proposed technique is verified.

© 2008 Optical Society of America

OCIS Codes
(090.0090) Holography : Holography
(090.1760) Holography : Computer holography
(090.2880) Holography : Holographic interferometry
(100.3010) Image processing : Image reconstruction techniques
(090.1995) Holography : Digital holography

History
Original Manuscript: October 1, 2007
Revised Manuscript: February 11, 2008
Manuscript Accepted: February 17, 2008
Published: April 25, 2008

Citation
Yasuhiro Awatsuji, Tatsuki Tahara, Atsushi Kaneko, Takamasa Koyama, Kenzo Nishio, Shogo Ura, Toshihiro Kubota, and Osamu Matoba, "Parallel two-step phase-shifting digital holography," Appl. Opt. 47, D183-D189 (2008)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-47-19-D183

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