Results 11 to 20 of about 3,035 (179)
Roadmap on Digital Holography-Based Quantitative Phase Imaging
Journal of Imaging, 2021 Quantitative Phase Imaging (QPI) provides unique means for the imaging of biological or technical microstructures, merging beneficial features identified with microscopy, interferometry, holography, and numerical computations.
Vinoth Balasubramani +16 more
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Digital Holographic Microscopy [PDF]
Optik & Photonik, 2007 AbstractDigital holographic microscopy provides quantitative phase contrast imaging that is suitable for high resolving investigations on reflective surfaces as well as for marker‐free analysis of living cells. Results from engineered surfaces and living cells demonstrate applications of digital holographic microscopy for technical inspection and life ...
Björn Kemper +2 more
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Adaptation of the Standard Off-Axis Digital Holographic Microscope to Achieve Variable Magnification
Photonics, 2021 Traditional microscopy provides only for a small set of magnifications using a finite set of microscope objectives. Here, a novel architecture is proposed for quantitative phase microscopy that requires only a simple adaptation of the traditional off ...
Xin Fan +4 more
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Monitoring Human Neutrophil Differentiation by Digital Holographic Microscopy
Frontiers in Physics, 2021 We report on the usefulness of digital holographic microscopy (DHM) for the assessment of human neutrophil differentiation from myeloid cells. The cell and nuclear regions have been designated by image segmentation of the optical phase function, and the ...
Maria Augusta do R. B. F. Lima +2 more
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Speckle-field digital holographic microscopy [PDF]
SPIE Proceedings, 2009 The use of coherent light in conventional holographic phase microscopy (HPM) poses three major drawbacks: poor spatial resolution, weak depth sectioning, and fixed pattern noise due to unwanted diffraction. Here, we report a technique which can overcome these drawbacks, but maintains the advantage of phase microscopy - high contrast live cell imaging ...
Park, Y Park, YongKeun +5 more
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Dynamic Speckle Illumination Digital Holographic Microscopy by Doubly Scattered System
Photonics, 2021 The coherent noise always exists in digital holographic microscopy due to the laser source, degrading the image quality. A method of speckle suppression using the dynamic speckle illumination, produced by double-moving diffusers, is presented in digital ...
Yun Liu +7 more
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Physics-driven learning for digital holographic microscopy [PDF]
EPJ Web of ConferencesDeep neural networks based on physics-driven learning make it possible to train neural networks with a reduced data set and also have the potential to transfer part of the numerical computations to optical processing.
Kieber Rémi +2 more
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Linearity and Optimum-Sampling in Photon-Counting Digital Holographic Microscopy
Photonics, 2022 In the image plane configurations frequently used in digital holographic microscopy (DHM) systems, interference patterns are captured by a photo-sensitive array detector located at the image plane of an input object.
Nazif Demoli +4 more
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Characterization of microlenses by digital holographic microscopy [PDF]
Applied Optics, 2006 We demonstrate the use of digital holographic microscopy (DHM) as a metrological tool in micro-optics testing. Measurement principles are compared with those performed with Twyman-Green, Mach-Zehnder, and white-light interferometers. Measurements performed on refractive microlenses with reflection DHM are compared with measurements performed with ...
Charrière, Florian +8 more
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Image Contrast Improvement in Interference-Dark-Field Digital Holographic Microscopy
Photonics, 2021 Conventional dark-field digital holographic microscopy (DHM) techniques require the use of specialized optics, and, thus, obtaining dark-field images with high contrast has a high cost. Herein, we propose a DHM system that uses an interference-dark-field
Chi-Ching Chang +4 more
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