Results 221 to 230 of about 526,512 (257)

Isotropic metamaterial electromagnetic lens

Physics Letters A, 2004
Several authors have recently exhibited the focusing activity in the domain of so-called electromagnetic lenses. These lenses are parallel-plate layers of metamaterials whose properties can be described in terms of negative index of refraction. Known works on this subject refer to 2D structures.
Verney, E., Sauviac, B., Simovski, C. R.
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An Overview of Electromagnetic Metamaterials

IEEE Latin America Transactions, 2020
Metamaterials can be defined as a joint of small artificial cells or elements which could be small scatterers or apertures which are distributed in a regular array throughout a region of space, in order to obtain some desirable macroscopic electromagnetic behavior which would be difficult to obtain with natural materials.
Raul H. Barroso, Wilmer Malpica
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Metamaterials in electromagnetics

Metamaterials, 2007
Abstract This article takes a look at metamaterials in electromagnetics from a general point of view. The terminology of complex electromagnetic materials is discussed critically. A unique definition for metamaterials does not exist, but certain salient points can be distinguished in the ongoing discussion within the research community and in various
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Electromagnetic response of ballistic metamaterials

Metamaterials, Metadevices, and Metasystems 2021, 2020
The electromagnetic response of ballistic metamaterials, metal-dielectric composites with the unit cell size smaller than electron mean free path, is defined by the surface scattering of the free electrons at the metal-dielectric interface.
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Modeling of electromagnetic metamaterials

2010 International Conference on Electromagnetics in Advanced Applications, 2010
Numerical modeling and experiment have the same importance in revealing the unusual properties of electromagnetic metamaterails. On one hand, the numerical modeling can confirm the experiments on metamaterials; on the other hand, it can explore the properties of metamaterials in extreme conditions which cannot be performed experimentally. In this paper,
Tie Jun Cui, Hui Feng Ma
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Transformation Electromagnetics and Metamaterials

2014
This book presents a comprehensive treatment of the rapidly growing area of transformation electromagnetics and related metamaterial technology with contributions on the subject provided by a collection of leading experts from around the world.
exaly   +2 more sources

Electromagnetic induction in metamaterials

Applied Physics B, 2008
Electromagnetic induction in the context of metal nanostructures and metamaterials is discussed. Pitfalls in the description of the excitation of current modes in such structures are pointed out. Areas of concern include the lack of complete conduction loops and excitation by plane waves versus uniform fields.
Meyrath, T. P., Zentgraf, T., Rockstuhl, C., Giessen, H.   +3 more
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Metamaterial Electromagnetic Cloak at Microwave Frequencies

Science, 2006
A recently published theory has suggested that a cloak of invisibility is in principle possible, at least over a narrow frequency band. We describe here the first practical realization of such a cloak; in our demonstration, a copper cylinder was “hidden” inside a cloak constructed according to the previous theoretical prescription.
D, Schurig, J J, Mock, B J, Justice, S A, Cummer, J B, Pendry, A F, Starr, D R, Smith   +6 more
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Electromagnetic reshaping via anisotropic metamaterials

2008 IEEE Antennas and Propagation Society International Symposium, 2008
In this paper, we introduce "specially-defined" coordinate transformation techniques to produce material specifications which control electromagnetic fields in reshaping objects in electromagnetic scattering (Ozgun et al., 2007), and in reshaping and/or miniaturizing waveguides. We first discuss the design procedure of the anisotropic metamaterials for
KUZUOĞLU, MUSTAFA, ÖZGÜN, ÖZLEM
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Metasurfaces and Metamaterials for Electromagnetics

IEEE Transactions on Antennas and Propagation
Metamaterials (MTMs) and metasurfaces (MTSs) are engineered materials and surfaces constituted by a distribution of electrically small particles that collectively exhibit emerging properties that enable superior control over the electromagnetic field.
A. Alù, S. Maci, N. Engheta
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