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Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Anthony J. Campillo
  • Vol. 32, Iss. 12 — Jun. 15, 2007
  • pp: 1602–1604

Temporal phase retrieval from a complex field in digital holographic interferometry

Chenggen Quan, Cho Jui Tay, and Hao Chen  »View Author Affiliations


Optics Letters, Vol. 32, Issue 12, pp. 1602-1604 (2007)
http://dx.doi.org/10.1364/OL.32.001602


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Abstract

We describe a novel method of processing complex phasors in digital holographic interferometry (DHI). Unlike the commonly used digital phase subtraction method that operates on the phase itself, the proposed method operates on the complex phasor instead. Two temporal phase retrieval algorithms are developed in which the complex phasor of each pixel is measured and analyzed as a function of time. The developed algorithms are demonstrated in profile measurement of step heights. Experimental results show that the proposed phase retrieval algorithms for DHI perform well compared with conventional methods.

© 2007 Optical Society of America

OCIS Codes
(090.1760) Holography : Computer holography
(090.2880) Holography : Holographic interferometry
(120.2830) Instrumentation, measurement, and metrology : Height measurements
(120.5050) Instrumentation, measurement, and metrology : Phase measurement

ToC Category:
Holography

History
Original Manuscript: January 2, 2007
Revised Manuscript: March 14, 2007
Manuscript Accepted: April 8, 2007
Published: June 5, 2007

Citation
Chenggen Quan, Cho Jui Tay, and Hao Chen, "Temporal phase retrieval from a complex field in digital holographic interferometry," Opt. Lett. 32, 1602-1604 (2007)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-32-12-1602


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