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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 39, Iss. 16 — Jun. 1, 2000
  • pp: 2577–2583

Simultaneous measurement of pure curvature and twist distribution fields by a five-aperture shearing and two-Fourier filtering technique

Kaifu F. Wang, A. Kiet Tieu, and Enbang B. Li  »View Author Affiliations


Applied Optics, Vol. 39, Issue 16, pp. 2577-2583 (2000)
http://dx.doi.org/10.1364/AO.39.002577


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Abstract

A five-aperture shearing and two-Fourier filtering technique to measure simultaneously pure curvature and twist distribution fields of a deformed object is proposed. In this method the slope fringes that are contained in the patterns of curvature and twist fringes can be completely eliminated. Thus patterns of pure curvature and twist fringes with a good contrast can be obtained. A theoretical analysis and experimental results are given.

© 2000 Optical Society of America

OCIS Codes
(030.6140) Coherence and statistical optics : Speckle
(070.6110) Fourier optics and signal processing : Spatial filtering
(120.3180) Instrumentation, measurement, and metrology : Interferometry

History
Original Manuscript: July 13, 1999
Revised Manuscript: February 3, 2000
Published: June 1, 2000

Citation
Kaifu F. Wang, A. Kiet Tieu, and Enbang B. Li, "Simultaneous measurement of pure curvature and twist distribution fields by a five-aperture shearing and two-Fourier filtering technique," Appl. Opt. 39, 2577-2583 (2000)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-39-16-2577


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References

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