Digital holography for quantitative phase-contrast imaging
Optics Letters, Vol. 24, Issue 5, pp. 291-293 (1999)
http://dx.doi.org/10.1364/OL.24.000291
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Abstract
We present a new application of digital holography for phase-contrast imaging and optical metrology. This holographic imaging technique uses a CCD camera for recording of a digital Fresnel off-axis hologram and a numerical method for hologram reconstruction. The method simultaneously provides an amplitude-contrast image and a quantitative phase-contrast image. An application to surface profilometry is presented and shows excellent agreement with contact-stylus probe measurements.
© 1999 Optical Society of America
[Optical Society of America ]
OCIS Codes
(040.1520) Detectors : CCD, charge-coupled device
(090.0090) Holography : Holography
(120.3940) Instrumentation, measurement, and metrology : Metrology
(120.5050) Instrumentation, measurement, and metrology : Phase measurement
(150.6910) Machine vision : Three-dimensional sensing
Citation
Etienne Cuche, Frédéric Bevilacqua, and Christian Depeursinge, "Digital holography for quantitative phase-contrast imaging," Opt. Lett. 24, 291-293 (1999)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-24-5-291
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