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Estimation of wavelength difference using scale adjustment in two-wavelength digital holographic interferometry |
Applied Optics, Vol. 50, Issue 31, pp. 6011-6018 (2011)
http://dx.doi.org/10.1364/AO.50.006011
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Abstract
We propose a method for an estimation of wavelength difference using scale adjustment in two- wavelength digital holographic interferometry. To estimate wavelength difference, two holograms recorded with different wavelengths are reconstructed on the basis of the Fresnel diffraction integral, and pixel sizes in the reconstruction plane, which depend on the wavelength in recording hologram, are analyzed. In the analysis, a zero-padding method and an intensity correlation function are used to adjust pixel sizes in the reconstruction plane and then obtain a wavelength difference given by a difference between the pixel sizes. Theoretical predictions and experimental results are shown to indicate the usefulness of the proposed method in this paper.
© 2011 Optical Society of America
OCIS Codes
(070.2590) Fourier optics and signal processing : ABCD transforms
(120.2880) Instrumentation, measurement, and metrology : Holographic interferometry
(120.5050) Instrumentation, measurement, and metrology : Phase measurement
(120.6650) Instrumentation, measurement, and metrology : Surface measurements, figure
(140.2020) Lasers and laser optics : Diode lasers
(090.1995) Holography : Digital holography
ToC Category:
Holography
History
Original Manuscript: April 29, 2011
Revised Manuscript: July 12, 2011
Manuscript Accepted: July 19, 2011
Published: October 31, 2011
Citation
Hideki Funamizu and Yoshihisa Aizu, "Estimation of wavelength difference using scale adjustment in two-wavelength digital holographic interferometry," Appl. Opt. 50, 6011-6018 (2011)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-50-31-6011
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