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High-resolution digital holographic microscopy
IEEE Photonics Conference 2012, 2012This study describes a novel technique for performing digital holographic microscopy with nano-meter axial resolution. The high-resolution digital holographic microscopy is applied to the three-dimensional tomographic imaging of refractive index inside an object.
Chau-Jern Cheng +2 more
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Digital Holography and Digital Holographic Microscopy
2015Whereas conventional analog holography (AH) entails physical re-illumination of the hologram of the object with a reading beam and finding the 3D real or virtual image, digital holography (DH) is a numerical procedure that simulates Fresnel diffraction of light from the re-illuminated hologram on a computer and numerically determines the images, which ...
Georges T. Nehmetallah +2 more
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Dual plane in-line digital holographic microscopy
Optics Letters, 2010We report a dual plane in-line digital holographic microscopy technique that exploits the method of subtraction of average intensity of the entire hologram to suppress the zero-order diffracted wave. Two interferograms are recorded at different planes to eliminate the conjugate image.
Das, Bhargab, Yelleswarapu, Chandra S
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Simultaneous Multiplane Imaging in Digital Holographic Microscopy
Journal of Display Technology, 2011We describe a numerical method applied to the reconstruction of a digital hologram, that allows to obtain the image of an object at three planes at different depths simultaneously. In order to do this, we introduce a numerical quadratic deformed diffraction grating into the algorithm.
Paturzo Melania +2 more
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RGB digital lensless holographic microscopy
SPIE Proceedings, 2013The recent introduction of color digital lensless holographic microscopy (CDLHM) has shown the possibility of imaging microscopic specimens at full color without the need of lenses. Owing to the simplicity, robustness, and compactness of the digital lensless holographic microscopes (DLHM), they have been presented as the ideal candidates to being ...
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Modular digital holographic microscopy
Holography, Diffractive Optics, and Applications XIII, 2023Zhengyuan Tang, Bryan M. Hennelly
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Multiple-wavelength digital holographic microscopy
2009In this thesis work, we extend digital holographic microscopy (DHM) capabilities and applications range by using from two to twenty different wavelength laser sources, either simultaneously or sequentially. As an overview, we present methods to increase the measurement range to more than three decades, from demonstrated sub-nanometer precision to ...
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Digital Holographic Microscopy
Imaging & Microscopy, 2009Björn Kemper +4 more
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