Results 111 to 120 of about 537,168 (232)

Switching near-IR metamaterial response with electrically-controlled liquid crystals

, 2013
We experimentally demonstrate efficient electrical modulation and switching of the near-IR response of plasmonic metamaterials loaded with liquid crystals.
Fedotov, V.A., Ou, J-Y., Buchnev, O., Kaczmarek, M., Zheludev, N.I.   +4 more
core   +1 more source

Microelectromechanical Maltese-cross metamaterial with tunable terahertz anisotropy

, 2012
Dichroic polarizers and waveplates exploiting anisotropic materials have vast applications in displays and numerous optical components, such as filters, beamsplitters and isolators. Artificial anisotropic media were recently suggested for the realization
Zhu, W.M., Zhang, X.H., Bourouina, T., Kwong, D.L., Tsai, D.P., Liu, A.Q., Lo, G.Q., Zheludev, N.I., Teng, J.H.   +8 more
core   +1 more source

An active viscoelastic metamaterial with enhanced band gap properties

, 2013
Metamaterials have been the subject of significant interest over the past decade due to their ability to produce novel acoustic behaviour beyond that seen in naturally occurring media.
Gao, Yan, Reynolds, Matthew, Daley, Stephen   +2 more
core   +1 more source

Design and Implementation of an X-Band Horn Antenna With a Metamaterial Lens Using 3D Printing Technology

IEEE Access
This paper presents the design and implementation of an X-band horn antenna, which operates over a frequency range of 7 – 9 GHz for small satellite communication systems in Low Earth Orbit (LEO), employing metamaterials and 3D printing technology.
Ji-Haeng Cho, Kyoung-Youl Park, Chul-Min Lim, Hae-Won Son   +3 more
doaj   +1 more source

MULTIPLE FOCUSING OF ELECTROMAGNETIC FIELD OF MAGNETIC DIPOLE BY MEANS OF PLANE-PARALLEL TWO-LAYER LENS FROM METAMATERIALS

Informatika, 2017
A method of analytical solution of the boundary-value problem of electromagnetic field penetration of point magnetic dipole through the infinite planar leans (screen) from the focusing metamaterials is suggested.
V. T. Erofeenko
doaj  

Fano resonances and collective effects in metamaterials

We review recent progress on the control of inter-meta-molecule interactions and collective effects in ...
Fedotov, V.A., Papasimakis, N., Zheludev, N.I.   +2 more
core   +1 more source

Light coupling in microwave metamaterials

, 2013
We report our recent achievements in tuning metamaterials with light. We introduce a novel approach to design metamaterials with sign-varying nonlinear response. For this purpose, we use split-ring resonators loaded by photodiodes and varactor diodes.
Shadrivov, IV, D. A. Powell, I. V. Shadrivov, Filonov, DS, M. Lapine, Powell, DA, Belov, PA, P. V. Kapitanova, P. A. Belov, Lapine, M, Yu. S. Kivshar, Kapitanova, PV, A. P. Slobozhanyuk, Kivshar, YS, D. S. Filonov, Slobozhanyuk, AP   +15 more
core   +1 more source

The Effects of Manufacturing Errors on the Performance of Acoustic Metamaterial Lenses Operating in the MHz Regime

Small Science
This article explores the use of acoustical metamaterials to design lenses in the megahertz frequency range of relevance to applications in nondestructive testing and medical imaging.
Feng Qin, Jie Zhang, Bruce W. Drinkwater
doaj   +1 more source

The influence of center of gravity and lens mass on rigid lens dynamics [PDF]

, 1996
PURPOSE: Center of gravity and lens mass have both been shown to influence rigid lens centration and stability. The purpose of this study was to investigate the relative contributions of these two factors to rigid lens dynamics.
Carney, Leo G., Hill, Richard M., Mainstone, Julia C., Quinn, Thomas G., Carkeet, Andrew D.   +4 more
core  

Frequency selective reflectors, magnetic walls and perfect optical absorbers based on new classes of metal and dielectric-loaded relief metamaterials

New classes of continuously metallic and 'dielectric-loaded' relief metamaterials (raised or indented sub-wavelength patterns on continuous, non-perforated metal surfaces) enable manipulation of reflected light intensity and phase in the visible-infrared
Ou, J-Y., MacDonald, K.F., Uchino, T., Zheludev, N.I., Zhang, J.   +4 more
core   +1 more source