Results 41 to 50 of about 34,940 (240)
4 pages revtex, clarifying remarks have been added, this is the version published in Classical and Quantum ...
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Attributing scientific and technical progress: the case of holography [PDF]
Holography, the three-dimensional imaging technology, was portrayed widely as a paradigm of progress during its decade of explosive expansion 1964–73, and during its subsequent consolidation for commercial and artistic uses up to the mid 1980s.
Johnston, Sean F., Johnston, S.F.
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We report the observation of large changes in the electro-optical properties of nematic liquid crystal (NLC) due to inclusion of small concentration of 10 nm diameter gold nanoparticles (GNPs).
M. Inam +3 more
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Since 1975, the authors have introduced the new technology of holography for three-dimensional evaluation of neuroradiograms. In this study we holographed conventional tomograms, axial transverse tomograms, and CT scans of a dry cervical vertebralcolumn.
WATANABE, Saburo +2 more
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Holography and phenomenology [PDF]
We examine various aspects of the conjectured duality between warped AdS$_5$ geometries with boundary branes and strongly coupled (broken) conformal field theories coupled to dynamical gravity. We also examine compactifications with 5-d gauge fields, in which case the holographic dual is a broken CFT weakly coupled to dynamical gauge fields in addition
Arkani-Hamed, Nima +2 more
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Robust Holographic Reconstruction by Deep Learning with One Frame
A robust method is proposed to reconstruct images with only one hologram in digital holography by introducing a deep learning (DL) network. The U-net neural network is designed according to DL principles and trained by the image data set collected using ...
Xianfeng Xu +3 more
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Absorbing new subjects: holography as an analog of photography [PDF]
I discuss the early history of holography and explore how perceptions, applications, and forecasts of the subject were shaped by prior experience. I focus on the work of Dennis Gabor (1900–1979) in England,Yury N. Denisyuk (b.
Johnston, Sean F., Johnston, S.F.
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Deconstruction and holography [PDF]
It was recently pointed out that the physics of a single discrete gravitational extra dimension exhibits a peculiar UV/IR connection relating the UV scale to the radius of the effective extra dimension. Here we note that this non-locality is a manifestation of holography, encoding the correct scaling of the number of fundamental degrees of freedom of ...
Jejjala, Vishnu +2 more
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High-resolution digital holography utilized by the subpixel sampling method [PDF]
A novel (to our knowledge) approach for resolution improvement in digital holography is presented in this paper. The proposed method is based on recording the incoming interference field on a complementary metal-oxide semiconductor (CMOS) camera with ...
Fritzsche, Marco +9 more
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Nanooptical elements for visual verification
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
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