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Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Alan E. Willner
  • Vol. 38, Iss. 11 — Jun. 1, 2013
  • pp: 1850–1852

Double aperture common-path phase-shifting interferometry by translating a ruling at the input plane

Cruz Meneses-Fabian, Rosaura Kantun-Montiel, Gildardo-Pablo Lemus-Alonso, and Uriel Rivera-Ortega  »View Author Affiliations


Optics Letters, Vol. 38, Issue 11, pp. 1850-1852 (2013)
http://dx.doi.org/10.1364/OL.38.001850


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Abstract

A method for introducing phase steps in an interferogram based on translating a ruling at the input plane of a double aperture common-path interferometer is presented. The setup is built on a 4f optical system consisting of two apertures at the input plane and a Ronchi ruling in the Fourier plane, where at each aperture a Ronchi ruling is also placed. By filtering at the Fourier plane a single diffraction order of the spectrum from the rulings in the object plane, we demonstrate that a phase step is generated when one of the rulings in the input plane is translated. The principal advantage of this proposal lies in improving the resolution in the phase step. We develop a theoretical model and show experimental results.

© 2013 Optical Society of America

OCIS Codes
(050.2770) Diffraction and gratings : Gratings
(050.5080) Diffraction and gratings : Phase shift
(070.0070) Fourier optics and signal processing : Fourier optics and signal processing
(120.3180) Instrumentation, measurement, and metrology : Interferometry
(260.3160) Physical optics : Interference
(070.2615) Fourier optics and signal processing : Frequency filtering

ToC Category:
Instrumentation, Measurement, and Metrology

History
Original Manuscript: March 21, 2013
Revised Manuscript: April 11, 2013
Manuscript Accepted: April 11, 2013
Published: May 22, 2013

Citation
Cruz Meneses-Fabian, Rosaura Kantun-Montiel, Gildardo-Pablo Lemus-Alonso, and Uriel Rivera-Ortega, "Double aperture common-path phase-shifting interferometry by translating a ruling at the input plane," Opt. Lett. 38, 1850-1852 (2013)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-38-11-1850


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