Results 91 to 100 of about 157,954 (272)

46‐Channel Image Encryption Based on Optically Controlled Metasurfaces

Advanced Electronic Materials
With the rapid growth of data volumes in modern society, efficient and secure methods for information transmission, storage, and encryption have become essential.
Yufei Liu, Guibin Li, Zehao He, Xinke Wang, Yan Zhang   +4 more
doaj   +1 more source

Nonlinear terahertz metamaterials via field-enhanced carrier dynamics in GaAs

, 2012
We demonstrate nonlinear metamaterial split ring resonators (SRRs) on GaAs at terahertz frequencies. For SRRs on doped GaAs films, incident terahertz radiation with peak fields of ~20 - 160 kV/cm drives intervalley scattering.
Averitt, Richard D., Fan, Kebin, Hwang, Harold Y., Liu, Mengkun, Nelson, Keith A., Sternbach, Aaron, Strikwerda, Andrew C., Zhang, Jingdi, Zhang, Xin, Zhao, Xiaoguang   +9 more
core   +1 more source

Cellulose‐Nanofiber‐Based Layered Sub‐Terahertz Absorbing Sheets for B5G/6G Applications

Advanced Materials Technologies, EarlyView.
We report a sub‐terahertz absorber made of biodegradable cellulose‐nanofiber (CNF), potentially useful for B5G/6G devices to achieve electromagnetic compatibility in an eco‐friendly way. The absorber is 120 µm thick and consists of two carbon‐nanotube‐dispersed CNF layers and one pure CNF layer.
Kosaku Kato, Shiyu Feng, Zixi Zhao, Verdad C. Agulto, Ami Mizui, Takaaki Kasuga, Shun Ishioka, Masaya Nogi, Ichiro Ota, Motoharu Haga, Minoru Ueshima, Makoto Nakajima   +11 more
wiley   +1 more source

Large-scale fabrication of achiral plasmonic metamaterials with giant chiroptical response

Beilstein Journal of Nanotechnology, 2016
A variety of extrinsic chiral metamaterials were fabricated by a combination of self-ordering anodic oxidation of aluminum foil, nanoimprint lithography and glancing angle deposition.
Morten Slyngborg, Yao-Chung Tsao, Peter Fojan   +2 more
doaj   +1 more source

Overview of the Current State of Research on Metamaterials in Biomedicine [PDF]

BIO Web of Conferences
This paper reviews the wide range of applications and current research status of metamaterials in the biomedical field, demonstrating their great potential in enhancing diagnostic accuracy, promoting tissue regeneration, and treating diseases. This paper
Yang Yicheng
doaj   +1 more source

Thermal tunability in terahertz metamaterials fabricated on strontium titanate single crystal substrates

, 2011
We report an experimental demonstration of thermal tuning of resonance frequency in a planar terahertz metamaterial consisting of a gold split-ring resonator array fabricated on a bulk single crystal strontium titanate (SrTiO3) substrate.
Abul K. Azad, Antoinette J. Taylor, Averitt, Chen, Chen, Chen, Chen, Chen, Driscoll, Driscoll, Han, Hand, Hou-Tong Chen, Jin, Nemec, Nemec, Padilla, Q. X. Jia, Ranjan Singh, Shen   +19 more
core   +1 more source

Terahertz Chiral Metamaterials Enabling Broadband Polarization Conversion Using Polarization Guiding Effect

Advanced Materials Technologies, EarlyView.
A broadband terahertz polarization rotator consisting of twistingly stacked silicon–air metagratings is designed based on the polarization guiding effect and experimentally shown to achieve 90° linear polarization rotation for both TE and TM incidences.
Yun‐Seok Choi, Tae Gwan Park, Antoinette J. Taylor, Hou‐Tong Chen, Abul K. Azad   +4 more
wiley   +1 more source

Scattering of electromagnetic waves from a graphene-coated thin cylinder of left-handed metamaterial

, 2017
In this paper we explored the scattering behavior of thin cylinders made of LHM and coated by a monoatomic graphene layer. A spectral tunability of the resonance peaks is evidenced by altering the chemical potential of the graphene coating, a fact that ...
Naserpour, Mahin, Pashaeiadl, Hamid, Zapata-Rodriguez, Carlos J.   +2 more
core   +1 more source

Tunable polarization-independent and angle-insensitive broadband terahertz absorber with graphene metamaterials.

Optics Express, 2021
In this paper, we design a polarization-independent and angle-insensitive broadband THz graphene metamaterial absorber based on the surface plasmon-polaritons resonance.
He Feng, Zixuan Xu, Kai Li, Mei Wang, W. Xie, Qingpeng Luo, Bingyu Chen, W. Kong, Maojin Yun   +8 more
semanticscholar   +1 more source

Terahertz Volume Plasmon‐Polariton Modulation in All‐Dielectric Hyperbolic Metamaterials

Advanced Optical Materials, EarlyView.
THz volume plasmon‐polariton (VPP) propagation through plasmon‐based hyperbolic metamaterials, made of alternating layers of doped and undoped III‐V semiconductors. Abstract The development of plasmonics and related applications in the terahertz range faces limitations due to the intrinsic high electron density of the standard metals.
Stefano Campanaro, Luca Bursi, Stefano Curtarolo, Arrigo Calzolari   +3 more
wiley   +1 more source