Results 81 to 90 of about 526,512 (257)

Numerical analysis of focusing by a metamaterial lens [PDF]

, 2008
Over the last several years there has been a surge of interest in artificial materials because of their potential to expand the range of electromagnetic properties in materials.
Russer, Peter, Culhaoglu, Ali Eren, Osipov, Andrey   +2 more
core  

Targeted Double Negative Properties in Silver/Silica Random Metamaterials by Precise Control of Microstructures

Research, 2019
The mechanism of negative permittivity/permeability is still unclear in the random metamaterials, where the precise control of microstructure and electromagnetic properties is also a challenge due to its random characteristic.
Peitao Xie, Peitao Xie, Zidong Zhang, Zhongyang Wang, Kai Sun, Runhua Fan, Runhua Fan   +6 more
doaj   +2 more sources

Sustainable Solutions in Sound Shielding: Harnessing Metamaterials for Acoustic Cloaking [PDF]

E3S Web of Conferences
The development of metamaterials promises to enable smallscale, worldwide industry-wide acoustic, electromagnetic, mechanical, and solar energy harvesting.
Singh Thapa Devendra, Najah Zahraa, Khosla Vivek, Ravinder Rathod, B Swathi, Nagpal Amandeep, Cheeli Ashok Kumar   +6 more
doaj   +1 more source

Wood Carbon Sponge/SiO2 Aerogel Composites with Anisotropic Broadband Microwave Absorption, Elastic Resilience, and Thermal Insulation

Advanced Science, EarlyView.
Anisotropic wood carbon sponge/SiO2 aerogel composites are constructed, revealing a robust direction‐dependent permittivity ordering (tangential > radial > axial). The radial direction delivers an ultra‐broadband effective absorption bandwidth of 11.6 GHz at only 4.95 mm, while the tangential direction offers superior compressibility and thermal ...
Shuo Sun, Zhimeng Zhao, Weikai Zhan, Yonggang Jiang, Fengqi Liu, Yijie Hu, Junzong Feng, Jian Feng   +7 more
wiley   +1 more source

Electron beams in 2D inhomogeneous graphene and nonlinear electrodynamics properties of graphene-dielectric multilayered metamaterials

, 2013
We develop farther our 'three-level' approach to graphene metamaterials including 'metamaterial treatment' of 2D beams of electron (BE) in graphene with 2D inhomogeneous and nonlinear electromagnetic waves in graphene-dielecric multlayered structres.
Rapoport, Y, Grimalsky, V., Boardman, A, Koshevaya, S., Kalinich, N., Kivshar, Yuri, Castrejon-Martinez, Ch., S. Koshevaya, Castrejon, M. C., Yu. Rapoport, Yu. Kivshar, A. Boardman, Rapoport, Y., M. C. Castrejon, V. Grimalsky, Kivshar, Yu, N. Kalinich, Boardman, A.   +17 more
core   +1 more source

One-dimensional chirality : strong optical activity in epsilon-near-zero metamaterials [PDF]

, 2015
A. C. and C. R. thank the U.S. Army International Technology Center Atlantic for financial support (Grant No. W911NF-14-1-0315). A. D. F. acknowledges support from EPSRC (EP/I004602/1 and EP/J004200/1).We suggest that electromagnetic chirality, generally
Rizza, C., Rizza C., Ciattoni A., Di Falco, A., Di Falco A., Scalora M., Scalora, M., Ciattoni, A., Ciattoni Alessandro, Rizza Carlo, Di Falco Andrea, Scalora Michael, Di Falco, A.; id_orcid   +12 more
core   +1 more source

Research on Communication Resource Management System based on Metamaterials

MATEC Web of Conferences, 2017
Electromagnetic Metamaterial (EMM), which cannot be found in nature and possesses the novel electromagnetic properties of negative refraction, reversals of both Doppler shift and Cherenkov radiation, is a kind of artificial composed material. In order to
Rong Zhou
doaj   +1 more source

Generative AI‐Enabled Discovery and Experimental Demonstration of Ultra‐Broadband Epsilon‐Near‐Zero Perfect Absorbers

Advanced Science, EarlyView.
Researchers developed and applied a generative artificial intelligence (AI) model to optimize epsilon‐near‐zero thin film stacks for ultra‐broadband perfect absorption of light. The fabricated AI‐designed absorber, with a total thickness of only 160 nm, experimentally demonstrated an absorption bandwidth exceeding 1000 nm while maintaining greater than
David Dang, Meena Salib, Quynh Dang, Sudip Gurung, Juan Calixto, Xuguo Zhou, Stuart Love, Massee Akbar, Aleksei Anopchenko, Wilton J.M. Kort‐Kamp, Ho Wai Howard Lee   +10 more
wiley   +1 more source

Application of Metamaterials in Antennas for Gain Improvement: A Study on Integration Techniques and Performance

IEEE Access
Metamaterials, with their extraordinary electromagnetic properties, have transformed antenna design by offering advanced control over signal propagation and radiation patterns.
Md Mirazur Rahman, Yang Yang, Shuvashis Dey   +2 more
doaj   +1 more source

Immunomagnetic‐MXene Bifunctional Probes for Ultrasensitive and Specific Terahertz Metasensing of Tumor‐Derived Exosomes

Advanced Science, EarlyView.
An immunomagnetic‐MXene bifunctional probe integrated with THz metamaterials enables ultrasensitive and specific detection of pancreatic cancer‐derived exosomes. Dual biomarker recognition ensures high specificity, while MXene signal amplification achieves a detection limit of 647 particles mL−1.
Weidong Jin, Jiyue Chen, Fengxin Xie, Huiyan Tian, Xuechen Dou, Yanqi Han, Lu Zhang, Jining Li, Xiang Yang   +8 more
wiley   +1 more source