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Journal of the Optical Society of America A

Journal of the Optical Society of America A

| OPTICS, IMAGE SCIENCE, AND VISION

  • Editor: Stephen A. Burns
  • Vol. 24, Iss. 4 — Apr. 1, 2007
  • pp: 1148–1155

High-visibility interferometric measurement of the diffraction phase

Salvador Barraza-Lopez, Daniel F. V. James, and Paul G. Kwiat  »View Author Affiliations


JOSA A, Vol. 24, Issue 4, pp. 1148-1155 (2007)
http://dx.doi.org/10.1364/JOSAA.24.001148


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Abstract

We obtain the absolute phase in Fresnel diffraction for Gaussian beams by using a modified polarization Sagnac interferometer in which counterpropagating paths are spatially separated and labeled according to polarization. By erasing the polarization “which-path” information with an analyzing polarizer situated after the modified interferometer, we are able to regain interference and to precisely control the relative intensities of the diffracted and the reference beams. The resulting optimized visibility allows for a precise phase determination. This setup is very stable, requiring no active elements.

© 2007 Optical Society of America

OCIS Codes
(050.1940) Diffraction and gratings : Diffraction
(120.2650) Instrumentation, measurement, and metrology : Fringe analysis
(120.3180) Instrumentation, measurement, and metrology : Interferometry
(120.5050) Instrumentation, measurement, and metrology : Phase measurement

ToC Category:
Instrumentation, Measurement, and Metrology

History
Original Manuscript: July 3, 2006
Revised Manuscript: November 24, 2006
Manuscript Accepted: November 29, 2006
Published: March 14, 2007

Citation
Salvador Barraza-Lopez, Daniel F. V. James, and Paul G. Kwiat, "High-visibility interferometric measurement of the diffraction phase," J. Opt. Soc. Am. A 24, 1148-1155 (2007)
http://www.opticsinfobase.org/josaa/abstract.cfm?URI=josaa-24-4-1148

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