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Applied Optics

Applied Optics


  • Vol. 35, Iss. 2 — Jan. 10, 1996
  • pp: 332–336

Fourier-transform evaluation of phase data in spatially phase-biased TV holograms

Henrik O. Saldner, Nils-Erik Molin, and Karl A. Stetson  »View Author Affiliations

Applied Optics, Vol. 35, Issue 2, pp. 332-336 (1996)

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TV holograms for spatial phase stepping are formed with a small angular offset between the object and the reference beams to give a spatial frequency bias to the pattern recorded by the TV camera. It is common to set the bias so that there is a 90° or 120° phase shift between adjacent pixels and to use the irradiance of three or more adjacent pixels to evaluate the phase of the interference. We report the Fourier-transform evaluation of such recordings to obtain their phase data. We also demonstrate the direct calculation of the phase difference between successive recordings without intermediate calculation of the random phase of each hologram. This technique is proposed as an approach to pulsed TV holography.

© 1996 Optical Society of America

Original Manuscript: May 24, 1995
Revised Manuscript: September 8, 1995
Published: January 10, 1996

Henrik O. Saldner, Nils-Erik Molin, and Karl A. Stetson, "Fourier-transform evaluation of phase data in spatially phase-biased TV holograms," Appl. Opt. 35, 332-336 (1996)

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