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Applied Optics

Applied Optics


  • Vol. 36, Iss. 22 — Aug. 1, 1997
  • pp: 5310–5316

Spatial phase shifting in electronic speckle pattern interferometry: minimization of phase reconstruction errors

Thorsten Bothe, Jan Burke, and Heinz Helmers  »View Author Affiliations

Applied Optics, Vol. 36, Issue 22, pp. 5310-5316 (1997)

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The advantages of spatial phase shifting (SPS) compared with temporal phase shifting in the field of electronic speckle pattern interferometry are described. Some periodic phase reconstruction errors occurring in SPS are discussed. It is shown that these errors become minimal for a spatial phase-shift angle of 2π/3. Furthermore, a modified phase reconstruction formula is presented by which the noise in the reconstructed phase map is reduced.

© 1997 Optical Society of America

Original Manuscript: July 22, 1996
Revised Manuscript: November 12, 1996
Published: August 1, 1997

Thorsten Bothe, Jan Burke, and Heinz Helmers, "Spatial phase shifting in electronic speckle pattern interferometry: minimization of phase reconstruction errors," Appl. Opt. 36, 5310-5316 (1997)

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