Accurate phase-shifting digital interferometry
Optics Letters, Vol. 32, Issue 11, pp. 1456-1458 (2007)
http://dx.doi.org/10.1364/OL.32.001456
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Abstract
In phase-shifting interferometry experiments, the accuracy of the phase shift is a major issue. Many experimental and data analyses are done to cancel phase-shift errors inherent to the modulation techniques used. We propose to remove most of the phase-shift error by recourse to a frequency-shifting method. This approach can be applied to both holography and interferometry. We validate the idea with a holographic experiment.
© 2007 Optical Society of America
OCIS Codes
(090.0090) Holography : Holography
(170.1650) Medical optics and biotechnology : Coherence imaging
(170.3660) Medical optics and biotechnology : Light propagation in tissues
(170.7050) Medical optics and biotechnology : Turbid media
(290.7050) Scattering : Turbid media
ToC Category:
Holography
History
Original Manuscript: February 21, 2007
Revised Manuscript: March 18, 2007
Manuscript Accepted: March 18, 2007
Published: May 2, 2007
Virtual Issues
Vol. 2, Iss. 7 Virtual Journal for Biomedical Optics
Citation
M. Atlan, M. Gross, and E. Absil, "Accurate phase-shifting digital interferometry," Opt. Lett. 32, 1456-1458 (2007)
http://www.opticsinfobase.org/vjbo/abstract.cfm?URI=ol-32-11-1456
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