Results 41 to 50 of about 28,100 (252)
Physical Review D, 1999 We study a topological field theory in four dimensions on a manifold with boundary. A bulk-boundary interaction is introduced through a novel variational principle rather than explicitly. Through this scheme we find that the boundary values of the bulk fields act as external sources for the boundary theory.
Husain, Viqar, Jaimungal, Sebastian
openaire +2 more sources
Digital Holography and Cell Studies [PDF]
, 2011 Digital holography microscopy (DHM) has developed into a broad field, and one of all the interesting applications is to study cells without staining, labeling or in any other way affecting them.
Janicke, Birgit, +25 more
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Nanooptical elements for visual verification
Scientific Reports, 2021 This paper focuses on the development of flat diffractive optical elements (DOEs) for protecting banknotes, documents, plastic cards, and securities against counterfeiting.
Alexander Goncharsky +3 more
doaj +1 more source
The contribution by Nils Abramson to the field of holography [PDF]
, 2023 Nils Abramson (1931 - 2019) was one of the true pioneers of holography. Shortly after lasers were made available in the1960s, he started research on how they could be used in engineering.
Gustafsson, Jonny,
core
X‐ray magnetic circular dichroism
Major Reference Works, Page 508-515., 2022 International Tables for Crystallography is the definitive resource and reference work for crystallography and structural science.
Each of the eight volumes in the series contains articles and tables of data relevant to crystallographic research and to applications of crystallographic methods in all sciences concerned with the ...
Gerrit van der Laan C. Chantler +2 more
wiley +1 more source
Edge-preserving autofocusing in digital holography [PDF]
, 2016 In digital holography, it is essential to know the axial position of the recorded object for reconstruction. Here we propose an autofocusing algorithm using structure tensor to determine the focal distance and to extract the edge information ...
Edmund Lam, Ren, Z, Zhenbo Ren, Lam, EYM
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Open Physics, 2019 This paper presents an evaluation of the realism of a full-color reflection H2 analog hologram recorded on ultra-fine-grain silver-halide material. An H2 hologram is a transplane image that is different from the well-known Denisyuk hologram in which the ...
Gentet Philippe +3 more
doaj +1 more source
Holography in superspace [PDF]
Journal of High Energy Physics, 2000 36 pages, LaTeX, references ...
Ooguri, Hirosi +3 more
openaire +4 more sources
Autofocusing of optical scanning holography based on entropy minimization [PDF]
, 2015 In optical scanning holography, extracting distance of object is an indispensable step for numerical reconstruction. In this paper, we use entropy as a measurement to achieve autofocusing under different situations.
Lam, E +7 more
core +1 more source
Grid computing for the numerical reconstruction of digital holograms [PDF]
, 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
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