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Digital holographic microscopy which has established itself as one of the leading techniques for quantitative phase contrast imaging. It has many advantages over conventional microscopy such as, improvement in image contrast and providing thickness profile of the object along the propagation direction of the probe beam. Other advantages are that numerical focusing and lensless imaging are possible...
The authors present high-speed motion pictures of phase-image obtained by digital holography. To obtain only the complex amplitudes of dynamically moving objects free from unwanted images such as non-diffraction wave and the conjugate image in digital holography, parallel phase-shifting interferometry was applied. High-speed motion picture of phaseimage of the dynamic change of air induced by focused...
In this paper we introduce a digital holographic technique called optical scanning holography (OSH). In OSH, the object to be measured is raster scanned by a pre-generated time-varying interference pattern. In addition, a single-pixel detector instead of an arrayed detector is used to acquire the hologram data. By using heterodyne technique in conjunction with synchronous demodulation, a complex hologram...
We propose a method to combine two phase-shifted holograms into a complex hologram. The reconstruction of the complex hologram will have no twin image noise but have a constant zeroth-order beam, which could be attenuated by subsequent optical filtering of the reconstructed image.
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