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Applied Optics

Applied Optics


  • Vol. 23, Iss. 24 — Dec. 15, 1984
  • pp: 4596–4600

Fringe sharpening and information coupling in speckle shear interferometry

R. K. Mohanty, C. Joenathan, and R. S. Sirohi  »View Author Affiliations

Applied Optics, Vol. 23, Issue 24, pp. 4596-4600 (1984)

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Fringe sharpening is required to obtain a higher accuracy of measurement. Nonlinear recording and consequently filtering at the higher-order halos for image formation give sharpened fringes in the image. Furthermore, if the apertures during recording are properly arranged, cross-frequency orders appear, which when used for filtering provide moiré fringes of higher contrast due to intercoupling.

© 1984 Optical Society of America

Original Manuscript: April 20, 1984
Published: December 15, 1984

R. K. Mohanty, C. Joenathan, and R. S. Sirohi, "Fringe sharpening and information coupling in speckle shear interferometry," Appl. Opt. 23, 4596-4600 (1984)

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