Digital holography for quantitative phase-contrast imaging

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 amp...

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Veröffentlicht in:Optics letters 1999-03, Vol.24 (5), p.291-293
Hauptverfasser: Cuche, E, Bevilacqua, F, Depeursinge, C
Format: Artikel
Sprache:eng
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Zusammenfassung: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.
ISSN:0146-9592
1539-4794
DOI:10.1364/ol.24.000291