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Optics Express

Optics Express

  • Editor: Michael Duncan
  • Vol. 13, Iss. 4 — Feb. 21, 2005
  • pp: 1240–1248

Subspace-based method for phase retrieval in interferometry

Abhijit Patil and Pramod Rastogi  »View Author Affiliations


Optics Express, Vol. 13, Issue 4, pp. 1240-1248 (2005)
http://dx.doi.org/10.1364/OPEX.13.001240


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Abstract

A subspace-based method is applied to phase shifting interferometry for obtaining in real time values of phase shifts between data frames at each pixel point. A generalized phase extraction algorithm then allows for computing the phase distribution. The method is applicable to spherical beams and is capable of handling nonsinusoidal waveforms in an effective manner. Numerical simulations demonstrate phase measurement with high accuracy even in the presence of noise.

© 2005 Optical Society of America

OCIS Codes
(120.3180) Instrumentation, measurement, and metrology : Interferometry
(120.5050) Instrumentation, measurement, and metrology : Phase measurement

ToC Category:
Research Papers

History
Original Manuscript: December 24, 2004
Revised Manuscript: December 24, 2004
Published: February 21, 2005

Citation
Abhijit Patil and Pramod Rastogi, "Subspace-based method for phase retrieval in interferometry," Opt. Express 13, 1240-1248 (2005)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-13-4-1240


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References

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