Results 41 to 50 of about 1,022 (205)

Multifunctional Programmable Transmissive Metasurface with Phase and Amplitude Manipulation Capability. [PDF]

open access: yesAdv Sci (Weinh)
Digital and programmable metasurfaces provide novel approaches to connect electromagnetic (EM) physics with information science for flexible EM wave manipulation and information modulation.
Shi HT   +8 more
europepmc   +2 more sources

Scalability Analysis of Programmable Metasurfaces for Beam Steering [PDF]

open access: yesIEEE Access, 2020
Programmable metasurfaces have garnered significant attention as they confer unprecedented control over the electromagnetic response of any surface. Such feature has given rise to novel design paradigms such as Software-Defined Metamaterials (SDM) and Reconfigurable Intelligent Surfaces (RIS) with multiple groundbreaking applications.
Hamidreza Taghvaee   +9 more
openaire   +6 more sources

Eye-Tracking-Driven Programming Metasurface System for Adaptive Beam Focusing and Polarization-Agile Communication. [PDF]

open access: yesResearch (Wash D C)
Expanding near-field regions in high-frequency 6G systems necessitates precise spatial-field control, yet narrow beamwidths and 3-dimensional tracking complexities create severe alignment hurdles.
Zhang S   +9 more
europepmc   +2 more sources

Highly integrated programmable metasurface for multifunctions in reflections and transmissions

open access: yesAPL Materials, 2022
Programmable manipulations on both reflections and transmissions usually require multi-layer metasurfaces, numerous active components, and control circuits, leading to a larger profile, complicated bias circuit design, and higher cost.
Qian Ma   +5 more
doaj   +1 more source

Programmable nonreciprocal meta-prism

open access: yesScientific Reports, 2021
Optical prisms are made of glass and map temporal frequencies into spatial frequencies by decomposing incident white light into its constituent colors and refract them into different directions.
Sajjad Taravati, George V. Eleftheriades
doaj   +1 more source

Adaptive Wettability of a Programmable Metasurface [PDF]

open access: yesAdvanced Engineering Materials, 2020
Metasurfaces with specific wettability have recently been gaining relevance in numerous areas of science and industry. This hasled to the technical requirements of these functional metasurfaces increasing in cost and complexity. Examples can be found in adjustable filters and membranes, as well as in lab‐on‐chip systems.
Marius Specht   +2 more
openaire   +2 more sources

Design of a Wide-Angle and Polarization-Free 1-Bit Programmable Metasurface

open access: yesFrontiers in Materials, 2022
Programmable metasurfaces have the powerful capability of controlling electromagnetic (EM) waves by coding the digital state of each meta-atom. However, conventional programmable metasurface units are difficult to maintain stable controllability under ...
Lu Liu, Yi Fei Huang, Hao Chi Zhang
doaj   +1 more source

Programmable Manipulations of Terahertz Beams by Graphene-Based Metasurface With Both Amplitude and Phase Modulations

open access: yesFrontiers in Materials, 2022
Terahertz metasurface with digital, programmable control recently gained considerable attention for its potential applications in high-speed imaging, nondestructive sensing, and wireless communication.
Chenxi Liu   +4 more
doaj   +1 more source

A Polarization‐Modulated Information Metasurface for Encryption Wireless Communications

open access: yesAdvanced Science, 2022
Programmable and information metasurfaces have shown great potentials in wireless communications, but there are few reports on encrypted communications. In this paper, a programmable polarization‐modulated (PoM) information metasurface is proposed, which
Hai Lin Wang, Hui Feng Ma, Tie Jun Cui
doaj   +1 more source

Asynchronous Circuits as an Enabler of Scalable and Programmable Metasurfaces [PDF]

open access: yes2018 IEEE International Symposium on Circuits and Systems (ISCAS), 2018
Metamaterials and metasurfaces have given possibilities for manipulating electromagnetic (EM) waves that in the past would have seemed impossible. The majority of metasurface designs are suitable for a particular frequency and angle of incidence. One long-sought objective is the design of programmable metasurfaces to dynamically manipulate a variety of
Petrou, Loukas   +5 more
openaire   +3 more sources

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