Results 21 to 30 of about 36,244,343 (204)

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

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

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

Digital Holographic Microscopy [PDF]

open access: yesOptik & 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
openaire   +1 more source

Off-axis transmission holographic system for recording aquatic particles [PDF]

open access: yes, 1996
We describe a holographic system for recording particles suspended in water. The hologram plate is located in air, separated from the test tank by an air/glass/water boundary. The holographic emulsion is therefore unaffected by adverse aquatic conditions
Lampitt, RS   +4 more
core   +6 more sources

Adaptation of the Standard Off-Axis Digital Holographic Microscope to Achieve Variable Magnification

open access: yesPhotonics, 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
doaj   +1 more source

Characterization of Polarization Holographic Gratings Obtained on Azopolymer Thin Films by Digital Holographic Microscopy

open access: yesJournal of Biomedical Photonics & Engineering, 2021
Polarization diffraction gratings are formed by one-step polarization holographic recording in azopolymer thin films. The evolution of the gratings parameters, such as the modulation of diffraction efficiency and relief depth with regard to different ...
Veronica Cazac   +5 more
doaj   +1 more source

Monitoring Human Neutrophil Differentiation by Digital Holographic Microscopy

open access: yesFrontiers 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
doaj   +1 more source

Grid computing for the numerical reconstruction of digital holograms [PDF]

open access: yes, 2005
Digital holography has the potential to greatly extend holography's applications and move it from the lab into the field: a single CCD or other solid-state sensor can capture any number of holograms while numerical reconstruction within a computer ...
Nebrensky, JJ   +5 more
core   +1 more source

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