Results 31 to 40 of about 103,433 (302)

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

Independent Wavefront Multiplexing with Metasurfaces via Non-Injective Transformation. [PDF]

open access: yesAdv Mater
In this work, a universal metasurface multiplexing strategy is presented based on non‐injective transformation. By jointly optimizing two metasurfaces, multiplexed channels achieve independent wavefront control, overcoming crosstalk limits of single‐layer designs.
Jin X, Zentgraf T.
europepmc   +2 more sources

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

Compressive Holographic Video [PDF]

open access: yes, 2016
Compressed sensing has been discussed separately in spatial and temporal domains. Compressive holography has been introduced as a method that allows 3D tomographic reconstruction at different depths from a single 2D image.
Chen, Huaijin   +6 more
core   +5 more sources

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

Heterodyne Holography with full control of both signal and reference arms

open access: yes, 2015
Heterodyne holography is a variant of phase shifting holography in which reference and signal arms are controlled by acousto optic modulators. In this review paper, we will briefy describe the method and its properties, and we will illustrate its ...
Gross, Michel
core   +3 more sources

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