Results 21 to 30 of about 82,025 (227)
Ghost Images in Helioseismic Holography? Toy Models in a Uniform Medium [PDF]
Helioseismic holography is a powerful technique used to probe the solar interior based on estimations of the 3D wavefield. Porter--Bojarski holography, which is a well-established method used in acoustics to recover sources and scatterers in 3D, is also ...
Yang, Dan
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True-color holograms, as they are the most advanced and realistic three-dimensional images obtainable with current technologies, can become valuable tools for the preservation, documentation and diffusion of cultural heritage.
Andreas Sarakinos, Alkis Lembessis
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Applications of X-Ray Holography
X-ray holography is widely used in material, biology, and industry fields due to its potential to measure the microstructure and dynamic change of objects.
Bingjun Shi, Yuan Fu, Yan Yang
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Since its invention, holography has been mostly applied at visible wavelengths in a variety of applications. Specifically, non-destructive testing of manufactured objects was a driver for developing holographic methods and all related ones based on the ...
Marc Georges +2 more
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Moyal Quantization, Holography, and the Quantum Geometry of Surfaces [PDF]
An elementary introduction is provided to the phase space quantization method of Moyal and Wigner. We generalize the method so that it applies to 2-dimensional surfaces, where it has an interesting connection with quantum holography.
Chapline, George, Granik, Alex
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7 pages, submitted to Optics ...
Abouraddy, Ayman F. +3 more
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Recent advances in multi-dimensional metasurfaces holographic technologies
Holography has attracted tremendous interest due to its capability of storing both the amplitude and phase of light field and reproducing vivid three-dimensional scenes. However, the large pixel size, low resolution, small field-of-view (FOV) and limited
Ruizhe Zhao +2 more
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Holographic Protection of Chronology in Universes of the Godel Type [PDF]
We analyze the structure of supersymmetric Godel-like cosmological solutions of string theory. Just as the original four-dimensional Godel universe, these solutions represent rotating, topologically trivial cosmologies with a homogeneous metric and ...
A. A. Tseytlin +30 more
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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
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Multi-freedom metasurface empowered vectorial holography
Optical holography capable of the complete recording and reconstruction of light’s wavefront, plays significant roles on interferometry, microscopy, imaging, data storage, and three-dimensional displaying.
Deng Zi-Lan +4 more
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