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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Vol. 23, Iss. 1 — Jan. 1, 1998
  • pp: 19–21

Punctuated quadrature phase-shifting interferometry

Leslie L. Deck and Peter J. de Groot  »View Author Affiliations


Optics Letters, Vol. 23, Issue 1, pp. 19-21 (1998)
http://dx.doi.org/10.1364/OL.23.000019


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Abstract

We describe a method and algorithm for reducing the sensitivity of phase-shifting interferometry to external vibrations. Using an interline-transfer camera, a shutter, and a fast phase shifter, we acquire a series of paired interferograms in quadrature, with the pairs spaced to maximize residual phase-error cancellation. The rapid acquisition of quadrature pairs significantly improves resistance of interferometry to low-frequency vibrations.

© 1998 Optical Society of America

OCIS Codes
(050.5080) Diffraction and gratings : Phase shift
(120.3180) Instrumentation, measurement, and metrology : Interferometry

Citation
Leslie L. Deck and Peter J. de Groot, "Punctuated quadrature phase-shifting interferometry," Opt. Lett. 23, 19-21 (1998)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-23-1-19

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