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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 27, Iss. 22 — Nov. 15, 1988
  • pp: 4731–4734

Universal digital speckle shearing interferometer

A. R. Ganesan, D. K. Sharma, and M. P. Kothiyal  »View Author Affiliations


Applied Optics, Vol. 27, Issue 22, pp. 4731-4734 (1988)
http://dx.doi.org/10.1364/AO.27.004731


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Abstract

A speckle shear interferometer is presented which can be used to yield lateral, radial, rotational, and inversion shear fringes in real time in conjunction with a digital image processing system. A modification of the optical arrangement yields reversal or folding shear as well. Experiments are conducted on an edge-clamped diaphragm with concentrated load. Unit contrast fringes have been obtained by resorting to nonlinear processing techniques such as level slicing. The results are presented for various types of shear.

© 1988 Optical Society of America

History
Original Manuscript: November 24, 1987
Published: November 15, 1988

Citation
A. R. Ganesan, D. K. Sharma, and M. P. Kothiyal, "Universal digital speckle shearing interferometer," Appl. Opt. 27, 4731-4734 (1988)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-27-22-4731


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References

  1. R. S. Sirohi, “Speckle Shear Interferometry—A Review,” J. Opt. India 13, 95 (1984).
  2. R. S. Sirohi, “Speckle Shear Interferometry,” Opt. Laser Technol. 16, 251 (1984). [CrossRef]
  3. J. A. Leendertz, J. N. Butters, “An Image Shearing-Speckle Pattern Interferometer for Measuring Bending Moments,” J. Phys. E 6, 1107 (1973). [CrossRef]
  4. R. Krishnamurthy, R. K. Mohanty, R. S. Sirohi, M. P. Kothiyal, “Radial Speckle Shearing Interferometer and Its Engineering Applications,” Optik 67, 85 (1984).
  5. R. K. Mohanty, C. Joenathan, R. S. Sirohi, “Speckle-Shear Interferometry with Double Dove-Prisms,” Opt. Commun. 47, 27 (1983). [CrossRef]
  6. R. K. Mohanty, C. Joenathan, R. S. Sirohi, “High Sensitivity Tilt Measurement by Speckle Shear Interferometry,” Appl. Opt. 25, 1661 (1986). [CrossRef] [PubMed]
  7. S. Nakadate, T. Yatagai, H. Saito, “Digital Speckle-Pattern Shearing Interferometry,” Appl. Opt. 19, 4241 (1980). [CrossRef] [PubMed]
  8. R. Jones, C. Wykes, Holographic and Speckle Interferometry (Cambridge U.P., London, 1983).
  9. S. Nakadate, T. Yatagai, H. Saito, “Electronic Speckle Pattern Interferometry Using Digital Image Processing Techniques,” Appl. Opt. 19, 1879 (1980). [CrossRef] [PubMed]

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