Journal ArticleDOI
Digital holography for quantitative phase-contrast imaging.
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TLDR
A new application of digital holography for phase-contrast imaging and optical metrology and an application to surface profilometry shows excellent agreement with contact-stylus probe measurements.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.read more
Citations
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Journal ArticleDOI
Simultaneous amplitude-contrast and quantitative phase-contrast microscopy by numerical reconstruction of Fresnel off-axis holograms
TL;DR: Off-axis holograms recorded with a magnified image of microscopic objects are numerically reconstructed in amplitude and phase by calculation of scalar diffraction in the Fresnel approximation to show that the transverse resolution is equal to the diffraction limit of the imaging system.
Journal ArticleDOI
Digital recording and numerical reconstruction of holograms
Ulf Schnars,Werner Jüptner +1 more
TL;DR: The principles and major applications of digital recording and numerical reconstruction of holograms (digital holography) are described, which are applied to measure shape and surface deformation of opaque bodies and refractive index fields within transparent media.
Journal ArticleDOI
Digital holographic microscopy: a noninvasive contrast imaging technique allowing quantitative visualization of living cells with subwavelength axial accuracy.
Pierre Marquet,Benjamin Rappaz,Pierre J. Magistretti,Etienne Cuche,Yves Emery,Tristan Colomb,Christian Depeursinge +6 more
TL;DR: A digital holographic microscope, in a transmission mode, especially dedicated to the quantitative visualization of phase objects such as living cells, is developed, based on an original numerical algorithm presented in detail elsewhere.
Journal ArticleDOI
Spatial filtering for zero-order and twin-image elimination in digital off-axis holography
TL;DR: Off-axis holograms recorded with a CCD camera are numerically reconstructed with a calculation of scalar diffraction in the Fresnel approximation and the zero order of diffraction and the twin image are digitally eliminated by means of filtering their associated spatial frequencies in the computed Fourier transform of the hologram.
Journal ArticleDOI
Quantitative phase imaging in biomedicine
TL;DR: This Review presents the main principles of operation and representative basic and clinical science applications of quantitative phase imaging, and aims to provide a critical and objective overview of this dynamic research field.
References
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Journal ArticleDOI
Direct recording of holograms by a CCD target and numerical reconstruction.
Ulf Schnars,W. Jüptner +1 more
TL;DR: The principle of recording holograms directly on a CCD target is described and a real image of the object is reconstructed from the digitally sampled hologram by means of numerical methods.
Journal ArticleDOI
Direct phase determination in hologram interferometry with use of digitally recorded holograms
TL;DR: In this paper, the phase determination in hologram interferometry is performed using a CCD target and phase estimation from the digitally sampled holograms, which are then used to calculate the phase of the interference phase.
Journal ArticleDOI
Multichannel Nomarski microscope with polarization modulation: performance and applications
TL;DR: Using a two-dimensional CCD array, a photoelastic modulator, and a commercial Nomarski microscope, a differential polarization interferometer was built that reached a shot-noise limit corresponding to 5-pm path differences for a few seconds of recording time.
Journal ArticleDOI
Calibration of step height standards for nanometrology using interference microscopy and stylus profilometry
Uwe Brand,W. Hillmann +1 more
TL;DR: In this article, the authors compared the calibration uncertainties of a commercial high-resolution contact stylus instrument with the calibration uncertainty of two types of interference microscopes, one of them is a phase-shifting Mirau interference microscope, the other is a Linnik interference microscope.
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Direct recording of holograms by a CCD target and numerical reconstruction.
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