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Applied Optics

Applied Optics


  • Vol. 36, Iss. 25 — Sep. 1, 1997
  • pp: 6231–6241

Modified Fourier transform method for interferogram fringe pattern analysis

J. B. Liu and P. D. Ronney  »View Author Affiliations

Applied Optics, Vol. 36, Issue 25, pp. 6231-6241 (1997)

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A modified Fourier transform method for interferogram fringe pattern analysis is proposed. While it retains most of the advantages of the Fourier transform method, the new method overcomes some drawbacks of the previous method. It eliminates the assumptions of slowly varying phase variation in the test section and the constant spatial carrier frequency. It also extends the frequency bandwidth and avoids phase distortion caused by discreteness of the sampling frequency. Both numerical simulation and experimental examination are performed to evaluate the performance of the method.

© 1997 Optical Society of America

Original Manuscript: August 23, 1996
Revised Manuscript: December 9, 1996
Published: September 1, 1997

J. B. Liu and P. D. Ronney, "Modified Fourier transform method for interferogram fringe pattern analysis," Appl. Opt. 36, 6231-6241 (1997)

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