Results 41 to 50 of about 24,825,488 (305)

Coupling Controlled Dual‐Band Tunable Electromagnetic Extraordinary Transmission in Graphene Hybrid Metasurfaces

open access: yesAdvanced Electronic Materials, 2023
A metasurface is a kind of ultrathin artificial composite composed of subwavelength elements with unique abilities in manipulating electromagnetic waves.
Jiameng Nan   +8 more
doaj   +1 more source

A Multispectral Light Field Dataset and Framework for Light Field Deep Learning [PDF]

open access: yesIEEE Access, 2020
Deep learning undoubtedly has had a huge impact on the computer vision community in recent years. In light field imaging, machine learning-based applications have significantly outperformed their conventional counterparts. Furthermore, multi- and hyperspectral light fields have shown promising results in light field-related applications such as ...
Maximilian Schambach, Michael Heizmann
openaire   +5 more sources

Cross-domain switching on a phase-change metasurface: From OAM generation to polarization-addressed focusing [PDF]

open access: yesAPL Photonics
Reconfigurable metasurfaces offer a compact route for switching optical functions without mechanical motion, yet most implementations remain confined to tuning within a single functional domain. Here, we demonstrate a nonvolatile phase-change metasurface
Jianing Cao   +6 more
doaj   +1 more source

Light Field Compression using Fourier Disparity Layers [PDF]

open access: yes, 2019
International audienceIn this paper, we present a compression method for light fields based on the Fourier Disparity Layer representation. This light field representation consists in a set of layers that can be efficiently constructed in the Fourier ...
Guillemot, Christine   +2 more
core   +1 more source

ITO-Based Electrically Tunable Metasurface for Active Control of Light Transmission

open access: yesNanomaterials
In recent years, the rapid development of dynamically tunable metasurfaces has provided a new avenue for flexible control of optical properties.
Ruize Ma   +4 more
doaj   +1 more source

Thermally reconfigurable Fano resonance in water brick pair metamaterial

open access: yesResults in Physics, 2021
We demonstrate thermally reconfigurable Fano resonance based on water metamaterial. A water brick pair metamaterial is proposed and prepared via injecting pure water inside dielectric template by 3D printing method. Magnetically induced Fano resonance is
Jing Xu   +4 more
doaj   +1 more source

Light-Field for RF

open access: yesCoRR, 2019
Most computer vision systems and computational photography systems are visible light based which is a small fraction of the electromagnetic (EM) spectrum. In recent years radio frequency (RF) hardware has become more widely available, for example, many cars are equipped with a RADAR, and almost every home has a WiFi device.
Manikanta Kotaru   +3 more
openaire   +2 more sources

Wavefront shaping of a Bessel light field enhances light sheet microscopy with scattered light [PDF]

open access: yes, 2014
The project was supported by the UK Engineering and Physical Sciences Research Council, RS MacDonald Charitable Trust, SULSA, and the St. Andrews 600th anniversary BRAINS appeal. K. D.
Vettenburg, T.; id_orcid   +12 more
core   +1 more source

Excitation and Tuning of Fano-like Resonances in Whispering Gallery Microcavity and Microfiber Modal Interferometer Coupled System

open access: yesSensors
We propose a method for the excitation and controllable tuning of Fano-like resonance based on whispering gallery mode (WGM) microcavities and microfiber modal interferometers (MMIs). By the interaction of the discrete comb-like resonant modes excited by
Qihao Yang   +6 more
doaj   +1 more source

The Influence of Oceanic Turbulence on Fiber-Coupling Efficiency of Multi-Gaussian Shell-Mode Beams for Underwater Optical Communications

open access: yesPhotonics
This study theoretically investigates the coupling efficiency of multi-Gaussian Shell-mode (MGSM) beams in ocean turbulence. The expression for the fiber-coupling efficiency of the MGSM beams propagating through oceanic turbulent media is derived using ...
Xiaonan Jing   +7 more
doaj   +1 more source

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