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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 35, Iss. 5 — Feb. 10, 1996
  • pp: 787–794

Dynamic holographic interferometry by photorefractive crystals for quantitative deformation measurements

Bruno Pouet and Sridhar Krishnaswamy  »View Author Affiliations


Applied Optics, Vol. 35, Issue 5, pp. 787-794 (1996)
http://dx.doi.org/10.1364/AO.35.000787


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Abstract

A holographic interferometer that uses two-wave mixing in a photorefractive (Bi12SiO20) crystal under an applied ac field is described. The interferometer uses a repetitive sequence of separate record and readout times to obtain quasi real-time holographic interferograms of vibrating objects. It is shown that a good signal-to-noise ratio of the interferometer is obtained by turning off the object illumination and the applied ac field during readout of the hologram. The good signal-to-noise ratio of the resulting holographic interferograms enables phase measurement, which allows for quantitative deformation analysis.

© 1996 Optical Society of America

History
Original Manuscript: March 7, 1995
Revised Manuscript: October 10, 1995
Published: February 10, 1996

Citation
Bruno Pouet and Sridhar Krishnaswamy, "Dynamic holographic interferometry by photorefractive crystals for quantitative deformation measurements," Appl. Opt. 35, 787-794 (1996)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-35-5-787

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