Results 11 to 20 of about 113,174 (295)

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
semanticscholar   +3 more sources

Imaging in digital holographic microscopy

open access: goldOptics Express, 2007
We present a theoretical formalism for three dimensional (3D) imaging properties of digital holographic microscopy (DHM). Through frequency analysis and visualization of its 3D optical transfer function, an assessment of the imaging behavior of DHM is given. The results are compared with those from other types of interference microscopy.
Shan Shan Kou, Colin J. R. Sheppard
openalex   +4 more sources

3D monitoring of the surface slippage effect on micro-particle sedimentation by digital holographic microscopy. [PDF]

open access: yesSci Rep, 2021
In several phenomena in biology and industry, it is required to understand the comprehensive behavior of sedimenting micro-particles in fluids. Here, we use the numerical refocusing feature of digital holographic microscopy (DHM) to investigate the ...
Panahi M   +5 more
europepmc   +2 more sources

Lipid quantification in living microalgal cultures with digital holographic microscopy [PDF]

open access: yesFrontiers in Photonics, 2022
Large amounts of lipids are stored inside lipid droplets by some microalgae. Since these lipids can be used to produce nutraceuticals and biodiesel in a sustainable way, research is developing on fast non-destructive methods to quantify and monitor the ...
Catherine Yourassowsky   +3 more
doaj   +2 more sources

Characterizing and tracking single colloidal particles with video holographic microscopy [PDF]

open access: yes, 2007
We use digital holographic microscopy and Mie scattering theory to simultaneously characterize and track individual colloidal particles. Each holographic snapshot provides enough information to measure a colloidal sphere's radius and refractive index to ...
Grier, David G.   +7 more
core   +2 more sources

Biomechanics of Ex Vivo-Generated Red Blood Cells Investigated by Optical Tweezers and Digital Holographic Microscopy. [PDF]

open access: yesCells, 2021
Ex vivo-generated red blood cells are a promising resource for future safe blood products, manufactured independently of voluntary blood donations. The physiological process of terminal maturation from spheroid reticulocytes to biconcave erythrocytes has
Bernecker C   +5 more
europepmc   +2 more sources

Real-time digital holographic microscopy observable in multi-view and multi-resolution [PDF]

open access: yesJournal of Optics, 12, 065402 (4pp) (2010), 2010
We propose a real-time digital holographic microscopy, that enables simultaneous multiple reconstructed images with arbitrary resolution, depth and positions, using Shifted-Fresnel diffraction instead of Fresnel diffraction.
Ichihashi, Yasuyuki   +3 more
core   +2 more sources

Digital holographic microscopy evaluation of dynamic cell response to electroporation. [PDF]

open access: yesBiomed Opt Express, 2021
Phase-derived parameters and time autocorrelation functions were used to analyze the behavior of murine B16 cells exposed to different amplitudes of electroporation pulses.
Calin VL   +6 more
europepmc   +2 more sources

Two-step distortion-free reconstruction scheme for holographic microscopy [PDF]

open access: yesDigital Holography and Three-Dimensional Imaging, Kohala Coast, Hawaii : France (2013), 2013
We propose a three-dimensional holographic reconstruction procedure applicable with no a priori knowledge about the recording conditions enabling distortion-free three-dimensional object ...
Gross, Michel   +4 more
core   +6 more sources

Digital holographic microscopy for diabetes screening [PDF]

open access: yesSPIE Newsroom, 2016
A digital holographic microscope operating in telecentric mode could be used to diagnose diabetes and evaluate long-term glycemic control in patients with ...
Doblas Expósito, Ana Isabel   +2 more
core   +5 more sources

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