title: Digital holography for quantitative phase-contrast imaging.
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.
authors: E
authors: E
authors: Cuche
authors: F
authors: F
authors: Bevilacqua
authors: C
authors: C
authors: Depeursinge