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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: James C. Wyant
  • Vol. 45, Iss. 25 — Sep. 1, 2006
  • pp: 6473–6476

Effect of phase mismatch on pseudo-phase-step analysis of time-average hologram recordings of vibration modes

Karl A. Stetson  »View Author Affiliations


Applied Optics, Vol. 45, Issue 25, pp. 6473-6476 (2006)
http://dx.doi.org/10.1364/AO.45.006473


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Abstract

I present the results of an experiment to demonstrate the effect of phase mismatch between an object vibration and a bias vibration in pseudo-phase-step analysis of time-average holographic interferograms of vibration modes. Pseudo-phase-stepping applies conventional phase-step equations to zero-order Bessel function fringes and during phase unwrapping corrects for the errors incurred. A circular disk vibrating in a quadrature combination of its two one-diameter modes was used as a test object and provided a 360° phase distribution. The results indicate that the process has considerable tolerance to phase mismatch.

© 2006 Optical Society of America

OCIS Codes
(120.2650) Instrumentation, measurement, and metrology : Fringe analysis
(120.3180) Instrumentation, measurement, and metrology : Interferometry

History
Original Manuscript: February 21, 2006
Manuscript Accepted: April 18, 2006

Citation
Karl A. Stetson, "Effect of phase mismatch on pseudo-phase-step analysis of time-average hologram recordings of vibration modes," Appl. Opt. 45, 6473-6476 (2006)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-45-25-6473


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References

  1. K. A. Stetson and W. R. Brohinsky, "Fringe-shifting technique for numerical analysis of time-average holograms of vibrating objects," J. Opt. Soc. Am. A 5, 1472-1476 (1998). [CrossRef]
  2. S. Ellingsrud and G. O. Rosvold, "Analysis of TV-holography system used to measure small vibration amplitudes," J. Opt. Soc. Am. A 9, 237-251 (1992). [CrossRef]
  3. K. A. Stetson, "The effects of beam modulation on fringe loci and localization in time-average hologram interferometry," J. Opt. Soc. Am. 60, 1378-1388 (1970). [CrossRef]
  4. K. A. Stetson, J. Wahid, and P. Gauthier, "Noise-immune phase unwrapping by use of calculated wrap regions," Appl. Opt. 36, 4830-4838 (1997). [CrossRef] [PubMed]
  5. N.-E. Molin and K. A. Stetson, "Measuring combination mode vibration patterns by hologram interferometry," J. Phys. E 2, 609-612 (1969). [CrossRef]

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