"' Digital holographic interference microscopy "'( DHIM ) is a combination of the holographic interference microscopy with digital methods of image processing for 3D imaging of phase micro-objects.
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"' Digital holographic interference microscopy "'( DHIM ) is a combination of the holographic interference microscopy with digital methods of image processing for 3D imaging of phase micro-objects.
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Prior to the war, he had been working on a preliminary design for interference microscopy, which at the time he believed to be original, though it turned out to have been tried 50 years before and abandoned.
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"' Holographic phase-contrast method "'is the holographic interference microscopy technique for phase micro-object visualization that converts the phase shifts inserted by the micro-object to the wave of light passed through it into intensity changes in the image.
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Note : In cases where the optical design of a microscope produces an appreciable lateral separation of the two beams we have the case of classical interference microscopy, which does not result in relief images, but can nevertheless be used for the quantitative determination of mass-thicknesses of microscopic objects.
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Popular interferometric measurement techniques include Phase Shifting Interferometry ( PSI ), and Vertical Scanning Interferometry ( VSI ), also known as scanning white light interferometry ( SWLI ) or by the ISO term Coherence Scanning Interferometry ( CSI ), CSI exploits coherence to extend the range of capabilities for interference microscopy.
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Both methods of holographic interference microscopy can be realized in a single device of the holographic interference microscope uses an optical microscope in an off-axis conventional holographic set-up, with the reference wave, which is usual for the holography, a laser as a period of the observed interference picture is adjusted just by cross shift of the hologram from its initial position.
