Results 11 to 20 of about 537,168 (232)

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. The so called metamaterials, also known as left-handed (LHM) or double-negative (DNG) materials with negative permittivity and permeability have attracted growing interest.
Culhaoglu, Ali Eren, Osipov, Andrey, Russer, Peter   +2 more
openaire   +3 more sources

High-performance Microwave Computational Imaging System Based on Information Metamaterials

Leida xuebao, 2021
In this paper, we propose a detailed architectural design, principle of operation, and modeling analysis of a high-performance microwave computational imaging system based on information metamaterials.
Jiaqi HAN, Shuncheng TIAN, Hao YI, Xiangjin MA, Guisheng LIAO, Long LI   +5 more
doaj   +1 more source

Broadband metamaterials and metasurfaces: a review from the perspectives of materials and devices

Nanophotonics, 2020
Metamaterials can possess extraordinary properties not readily available in nature. While most of the early metamaterials had narrow frequency bandwidth of operation, many recent works have focused on how to implement exotic properties and functions over
Jung Joonkyo, Park Hyeonjin, Park Junhyung, Chang Taeyong, Shin Jonghwa   +4 more
doaj   +1 more source

Metamaterial lens design

Journal of the Optical Society of America A, 2016
Given a surface which is not necessarily rotationally symmetric, we design a second surface such that the lens bounded between these two surfaces refracts monochromatic radiation into a given point. The lens consists of a material having a negative refractive index. We then generalize a result of Veselago when the given surface is a plane and show that
Stachura, Eric, Gutierrez, Cristian E.
openaire   +2 more sources

Flexible metamaterials for advanced photonics applications [PDF]

, 2014
We present our recent results on the design, fabrication and applications of flexible metamaterials in the visible and near infrared range. In particular, we demonstrate broad angle spectral filtering for lab-on-fibre applications, the realisation of ...
Shen, Y., Kirkpatrick, B., P. Reader-Harris, Di Falco, A., A. Di Falco, M. Pietrzyk, Pietrzyk, M., Y. Shen, Reader-Harris, P., B. Kirkpatrick   +9 more
core   +1 more source

Advanced application of flexible metamaterials at visible frequencies [PDF]

, 2015
The authors acknowledge support by EPSRC (EP/I004602/1 and EP/J004200/1).Flexible metamaterials (FMMs) at optical frequencies can conform to a wide range of target geometries whilst allowing their optical properties to be tuned post-fabrication.
Andrea Di Falco, Shen, Y., Jingzhi Wu, Kirkpatrick, B.C., Di Falco, A., Peter Reader-Harris, Reader-Harris, P., Wu, J., Yufang Shen, Blair C. Kirkpatrick   +9 more
core   +1 more source

Emergent reconfigurable mechanical metamaterial tessellations with an exponentially large number of discrete configurations

Materials & Design, 2020
Metamaterials are a class of engineered materials that often violate the routine assumptions that apply to ordinary materials. While metamaterials are typically assembled from carefully designed mesoscale units, the intended bulk-scale functionality can ...
Nan Yang, Chun-Wei Chen, Jinkyu Yang, Jesse L. Silverberg   +3 more
doaj   +1 more source

Near-field Image Transfer by Magneto-Inductive Arrays: a Modal Perspective [PDF]

, 2011
20.05.13 KB. Ok to add accepted version to Spiral.A simple model of near-field pixel-to-pixel image transfer using magneto-inductive arrays is presented.
RRA, Syms, R.R.A. Syms, Shamonina, E, Solymar, L, E. Shamonina, L. Solymar   +5 more
core   +1 more source

Multiple linear-crossing metamaterials for directional refraction

Frontiers in Materials, 2022
Recently, linear-crossing metamaterials (LCMMs) in the hyperbolic topological transition of iso-frequency contour, have attracted people’s great attention.
Zhiwei Guo, Zhiwei Guo, Yiran Jian, Yiran Jian, Xian Wu, Fusheng Deng, Lijuan Dong, Hong Chen, Hong Chen   +8 more
doaj   +1 more source

Enhancement of Spatial Resolution Using a Metamaterial Sensor in Nondestructive Evaluation

Applied Sciences, 2015
The current stage of non-destructive evaluation techniques imposes the development of new electromagnetic methods that are based on high spatial resolution and increased sensitivity.
Adriana Savin, Alina Bruma, Rozina Steigmann, Nicoleta Iftimie, Dagmar Faktorova   +4 more
doaj   +1 more source