Results 31 to 40 of about 2,921,433 (276)

Color models of interference images of thin stratified objects in optical microscopy [PDF]

open access: yesКомпьютерная оптика, 2019
Algorithms for the analysis of polychromatic interference patterns in images of thin stratified objects in optical microscopy are considered. The algorithms allow one to measure the thin-film optical thickness.
Anton Dyachenko, Vladimir Ryabukho
doaj   +1 more source

Interference Reflection Microscopy [PDF]

open access: yesCurrent Protocols in Cell Biology, 2009
AbstractInterference reflection microscopy (IRM) is an optical technique used to study cell adhesion or cell mobility on a glass coverslip. The interference of reflected light waves generates images with high contrast and definition. IRM can be used to examine almost any cell that will rest upon a glass surface, although it is most useful in examining ...
Valarie A, Barr, Stephen C, Bunnell
openaire   +2 more sources

Wide-field parallel mapping of local spectral and topographic information with white light interference microscopy.

open access: yesOptics Letters, 2021
Fourier analysis of interferograms captured in white light interference microscopy is proposed for performing simultaneous local spectral and topographic measurements at high spatial resolution over a large field of view.
S. Marbach   +5 more
semanticscholar   +1 more source

Microsphere assistance in interference microscopy with high numerical aperture objective lenses

open access: yes, 2022
. Various attempts have been discussed to overcome the lateral resolution limit and thus to enlarge the fields of application of optical interference microscopy.
Lucie Hüser   +3 more
semanticscholar   +1 more source

Spatial spectrum of coherence signal for a defocused object images in digital holographic microscopy with partially spatially coherent illumination [PDF]

open access: yesКомпьютерная оптика, 2018
We study the effect of a decrease in the magnitude of the coherence signal in high-frequency spatial spectrum for a defocused object image in transmission digital holographic microscopy with quasimonochromatic partially spatially coherent illumination. A
Daria Klychkova, Vladimir Ryabukho
doaj   +1 more source

Analysis of interference microscopy in the spatial frequency domain

open access: yes, 2021
If high numerical apertures are used in coherence scanning interferometry, an extension of the interference signal’s spectral distribution to lower frequencies can be observed.
P. Lehmann, Marco Künne, T. Pahl
semanticscholar   +1 more source

Sequential Shift Absolute Phase Aberration Calibration in Digital Holographic Phase Imaging Based on Chebyshev Polynomials Fitting

open access: yesIEEE Photonics Journal, 2020
We propose a novel absolute calibrate method for digital holographic microscopy with the sequential shift method using Chebyshev polynomials. We separate the object phase and the aberrations by sequential shifting the sample twice in vertical plane of ...
Weilin He   +4 more
doaj   +1 more source

Structured illumination microscopy based on asymmetric three-beam interference

open access: yesJournal of Innovative Optical Health Sciences, 2021
Structured illumination microscopy (SIM) is a rapidly developing super-resolution technology. It has been widely used in various application fields of biomedicine due to its excellent two- and three-dimensional imaging capabilities.
Linyu Xu   +6 more
doaj   +1 more source

On interference microscopy [PDF]

open access: yesProceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences, 1947
Abstract Interference microscopy provides a method of increasing the visibility of specimens which are colourless and which differ slightly in refractive index from the surrounding medium by enclosing them between semi-reflecting surfaces, which thus constitute an interferometer.
openaire   +2 more sources

Lens aberration compensation in interference microscopy

open access: yesOptics and lasers in engineering, 2020
Emergence of products that feature functional surfaces with complex geometries, such as freeform optics in consumer electronics and augmented reality and virtual reality, requires high-accuracy non-contact surface measurement.
Rong Su   +7 more
semanticscholar   +1 more source

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