Results 11 to 20 of about 16,139 (251)

Physical pupil manipulation for speckle reduction in digital holographic microscopy [PDF]

open access: yesHeliyon, 2021
The reduction of speckle noise by physically changing the pupil of the imaging system, as first envisioned in optical holography, is experimentally applied to a digital holographic microscope (DHM).
Carlos Buitrago-Duque   +1 more
doaj   +2 more sources

Development of Digital Holographic Microscopy by reflection for analysis of surface

open access: goldResults in Physics, 2018
A methodology based on the DHM of reflection using a Michelson micro interferometer scheme is used here for dimensional controlling objects and for determining the surface profile of steel samples.
Meylí Valin Fernández   +5 more
doaj   +2 more sources

Assessing embryo quality with digital holographic microscopy [PDF]

open access: yesEPJ Web of Conferences, 2023
A low-powered, non-invasive digital holographic microscopic imaging technique for embryo quality assessment is presented. Two groups of 2 cell-stage embryos cultured in media of different lipid concentrations have been characterized with digital ...
Dwapanyin George   +6 more
doaj   +1 more source

Digital Holographic Microscopy [PDF]

open access: yesImaging and Applied Optics 2016, 2011
Microscopy is one of the main research and application areas of digital holography. Direct access to the phase as well as amplitude profiles makes quantitative phase microscopy by digital holography (DH-QPM) particularly powerful and versatile. A number of techniques of DH are developed especially for microscopy imaging and these are made possible ...
Tristan Colomb, Jonas Kühn
openaire   +4 more sources

Resolution and Contrast Enhancement for Lensless Digital Holographic Microscopy and Its Application in Biomedicine

open access: yesPhotonics, 2022
An important imaging technique in biomedicine, the conventional optical microscopy relies on relatively complicated and bulky lens and alignment mechanics.
Duofang Chen   +4 more
doaj   +1 more source

Single-Element Reflective Digital Holographic Microscopy

open access: yesFrontiers in Physics, 2021
Digital holographic microscopy (DHM) is a well-known microscopy technique using an interferometric architecture for quantitative phase imaging (QPI) and it has been already implemented utilizing a large number of interferometers.
José Ángel Picazo-Bueno   +2 more
doaj   +1 more source

Roadmap on Digital Holography-Based Quantitative Phase Imaging

open access: yesJournal 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
doaj   +1 more source

Integrated self-referencing single shot digital holographic microscope and optical tweezer

open access: yesLight: Advanced Manufacturing, 2022
Digital holographic microscopy is a single-shot technique for quantitative phase imaging of samples, yielding thickness profiles of phase objects. It provides sample features based on their morphology, leading to their classification and identification ...
Subhash Utadiya   +8 more
doaj   +1 more source

Blind digital holographic microscopy [PDF]

open access: yesSPIE Proceedings, 2017
A blind variant of digital holographic microscopy is presented that removes the requirement for a well-characterized, highly divergent reference beam. This is achieved by adopting an off-axis recording geometry where a sequence of holograms is recorded as the reference is tilted, and an iterative algorithm that estimates the amplitudes and phases of ...
Anderson, Patrick N.   +9 more
openaire   +2 more sources

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