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Digital Holography for Quantitative Phase-contrast Imaging

Overview
Journal Opt Lett
Specialty Ophthalmology
Date 2007 Dec 12
PMID 18071483
Citations 106
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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.

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