Search engine for discovering works of Art, research articles, and books related to Art and Culture
Javascript must be enabled to continue!
Graphene-based tunable coding metasurfaces in terahertz band
View through CrossRef
Two graphene-based tunable coding metasurfaces are proposed for beam steering in terahertz band. The coding metasurfaces are composed of the unit cell with a sandwich-like structure, which contains the top layer of anisotropic rectangular graphene structure, intermediate dielectric layer and ground plane. The designed metasurfaces can be dynamically adjusted since the characteristics of unit cell are changed by the chemical potential of graphene. When the relaxation time and chemical potential of graphene are 0.8 ps and 0.85 eV, respectively. The coding metasurfaces could realize beam steering in 1.30 THz-1.70 THz. On the other hand, when the chemical potential of graphene is 0 eV, two metasurfaces without beam steering in this band. The designed graphene-based tunable coding metasurfaces has potential application value in the fields of terahertz communication, sensing, etc.
Title: Graphene-based tunable coding metasurfaces in terahertz band
Description:
Two graphene-based tunable coding metasurfaces are proposed for beam steering in terahertz band.
The coding metasurfaces are composed of the unit cell with a sandwich-like structure, which contains the top layer of anisotropic rectangular graphene structure, intermediate dielectric layer and ground plane.
The designed metasurfaces can be dynamically adjusted since the characteristics of unit cell are changed by the chemical potential of graphene.
When the relaxation time and chemical potential of graphene are 0.
8 ps and 0.
85 eV, respectively.
The coding metasurfaces could realize beam steering in 1.
30 THz-1.
70 THz.
On the other hand, when the chemical potential of graphene is 0 eV, two metasurfaces without beam steering in this band.
The designed graphene-based tunable coding metasurfaces has potential application value in the fields of terahertz communication, sensing, etc.
Related Results
Preparation of Graphene Fibers
Preparation of Graphene Fibers
Graphene owns intriguing properties in electronic, thermal, and mechanic with unique two-dimension (2D) monolayer structure. The new member of carbon family has not only attracted ...
Raman Spectroscopy Imaging of Exceptional Electronic Properties in Epitaxial Graphene Grown on SiC
Raman Spectroscopy Imaging of Exceptional Electronic Properties in Epitaxial Graphene Grown on SiC
Graphene distinctive electronic and optical properties have sparked intense interest throughout the scientific community bringing innovation and progress to many sectors of academi...
Characterization and preliminary application of top-gated graphene ion-sensitive field effect transistors
Characterization and preliminary application of top-gated graphene ion-sensitive field effect transistors
Graphene, a 2-dimensional material, has received increasing attention due to its unique physicochemical properties (high surface area, excellent conductivity, and high mechanical s...
Scalable techniques for graphene on glass
Scalable techniques for graphene on glass
The combination of unique properties -high electrical mobility, thermal conductivity, transparency and mechanical flexibility- make graphene promising for a wide variety of applica...
Phase change materials (PCM) for the reconfiguration of terahertz devices
Phase change materials (PCM) for the reconfiguration of terahertz devices
Matériaux à changement de phase (PCM) pour la réalisation de dispositifs térahertz reconfigurables
Les dispositifs multifonctionnels sont essentiels pour le dévelop...
Lipids monitoring in Scenedesmus obliquus based on Terahertz Technology
Lipids monitoring in Scenedesmus obliquus based on Terahertz Technology
Abstract
BackgroundMicroalgae are considered as a source of low pollution and renewable fuel due to their ability to synthesize an abundance of lipids. Conventional methods...
Graphene-Based Plasmonic Terahertz Laser Transistors
Graphene-Based Plasmonic Terahertz Laser Transistors
This chapter reviews recent advances in the research of graphene-based plasmonic terahertz laser transistors. Optically or electrically pumped graphene works as a gain medium in th...
Two-Beam Ultrafast Laser Scribing of Graphene Patterns with 90-nm Subdiffraction Feature Size
Two-Beam Ultrafast Laser Scribing of Graphene Patterns with 90-nm Subdiffraction Feature Size
The fabrication of high-resolution laser-scribed graphene devices is crucial to achieving large surface areas and thus performance breakthroughs. However, since the investigation m...