Results 21 to 30 of about 30,655 (260)

Holography in the invisible. From the thermal infrared to the terahertz waves: outstanding applications and fundamental limits

open access: yesLight: Advanced Manufacturing, 2022
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
doaj   +1 more source

Topological holography [PDF]

open access: yesPhysical 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

Recent advances in multi-dimensional metasurfaces holographic technologies

open access: yesPhotoniX, 2020
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
doaj   +1 more source

Multi-freedom metasurface empowered vectorial holography

open access: yesNanophotonics, 2022
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
doaj   +1 more source

Scale holography [PDF]

open access: yesThe European Physical Journal C, 2018
We present a new correspondence between a d-dimensional dynamical system and a whole family of (d+1)-dimensional systems. This new scale-holographic relation is built by the explicit introduction of a dimensionful constant which determines the size of the additional dimension.
Ruiz Cembranos, José Alberto   +2 more
openaire   +5 more sources

Information multiplexing from optical holography to multi-channel metaholography

open access: yesNanophotonics, 2023
Holography offers a vital platform for optical information storage and processing, which has a profound impact on many photonic applications, including 3D displays, LiDAR, optical encryption, and artificial intelligence.
Márquez Andrés   +4 more
doaj   +1 more source

Linear polarization holography

open access: yesOpto-Electronic Science, 2022
Polarization holography is a newly researched field, that has gained traction with the development of tensor theory. It primarily focuses on the interaction between polarization waves and photosensitive materials.
Jinyu Wang   +11 more
doaj   +1 more source

Robust Holographic Reconstruction by Deep Learning with One Frame

open access: yesPhotonics, 2023
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
doaj   +1 more source

Effect of gold nano-particles on switch-on voltage and relaxation frequency of nematic liquid crystal cell

open access: yesAIP Advances, 2011
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
doaj   +1 more source

Holostereosynthesis: An Improvement to Louis Lumière’s Photostereosynthesis Technique

open access: yesApplied Sciences, 2022
In 1920, Louis Lumière, one of the fathers of Cinématograph, invented photostereosynthesis, a photography technique that could recreate three-dimensional images without a specific artifice.
Philippe Gentet   +2 more
doaj   +1 more source

Home - About - Disclaimer - Privacy