Results 111 to 120 of about 16,591 (234)

Limits of Elemental Contrast by Low Energy Electron Point Source Holography

open access: yes, 2011
Motivated by the need for less destructive imaging of nanostructures, we pursue point-source in-line holography (also known as point projection microscopy, or PPM) with very low energy electrons (-100 eV).
Livadaru, Lucian   +2 more
core   +1 more source

Heterodyne Holography with full control of both signal and reference arms

open access: yes, 2015
Heterodyne holography is a variant of phase shifting holography in which reference and signal arms are controlled by acousto optic modulators. In this review paper, we will briefy describe the method and its properties, and we will illustrate its ...
Gross, Michel
core   +3 more sources

Decision: Quantification of pollen viability in Lantana camara by digital holographic microscopy — R0/PR5

open access: gold, 2023
Vipin Kumar   +5 more
openalex   +1 more source

Microsphere-assisted quantitative phase microscopy: a review

open access: yesLight: Advanced Manufacturing
Light microscopes are the most widely used devices in life and material sciences that allow the study of the interaction of light with matter at a resolution better than that of the naked eye. Conventional microscopes translate the spatial differences in
Vahid Abbasian   +6 more
doaj   +1 more source

Automatic Focusing of Off-Axis Digital Holographic Microscopy by Combining the Discrete Cosine Transform Sparse Dictionary with the Edge Preservation Index

open access: yesOptics
Automatic focusing is a crucial research issue for achieving high-quality reconstructed images in digital holographic microscopy. This paper proposes an automatic focusing method that combines the discrete cosine transform (DCT) sparse dictionary with ...
Zhaoliang Liu, Peizhen Qiu, Yupei Zhang
doaj   +1 more source

Label-free spatio-temporal monitoring of cytosolic mass, osmolarity, and volume in living cells

open access: yesNature Communications, 2019
Label-free, spatio-temporal imaging of cellular physiological responses is challenging. Here the authors combine digital holographic microscopy with a millifluidic chip and mathematical modelling to quantify cell volume, mass and cell uptake under ...
Daniel Midtvedt   +3 more
doaj   +1 more source

Incoherent Lateral Shearing Digital Holographic Microscopy

open access: yes2025 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC)
Revealing the structural and functional organization of biological samples at submicrometer scales requires high-resolution imaging techniques that provide real-time, quantitative information. However, resolving and analyzing unlabeled biological structures at the subcellular level from a single-shot image remain challenging.
Jaromír Běhal, Miroslav Ježek
openaire   +2 more sources

Non-isoplanatic lens aberration correction in dark-field digital holographic microscopy for semiconductor metrology

open access: diamond, 2023
Tamar van Gardingen-Cromwijk   +7 more
openalex   +1 more source

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