Peculiarities in the dielectric response of negative-permittivity scatterers
TLDR
In this article, the polarizability properties of spherically layered small inclusions that possess negative permittivity were analyzed and conditions for invisibility to external electric fields were derived.Abstract:
This study analyzes polarizability properties of spherically layered small inclusions that possess negative permittivity. Conditions for invisibility to external electric fields are derived. The complementary principle for two-dimensional scatterers is used to derive special properties of self-complementary inclusions. A singular behavior between the limits of invisibility and infinite response is underlined for a hollow circular shell. A similar,although not as drastic,phenomenon is shown to take place for the three-dimensional hollow sphere.read more
Citations
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Proceedings ArticleDOI
Peculiar and anomalous cloaking features of plasmonic materials
Andrea Alù,Nader Engheta +1 more
TL;DR: In this article, the main features of cloaking based on plasmonic materials, together with some novel aspects of the exotic and anomalous features that such material may provide.
Journal Article
Simplified Cylindrical Electromagnetic Cloak for Reduction of RCS
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Dissertation
DETERMINATION OF EFFECTIVE PARAMETERS OF METAMATERIALS WITH SPHERICAL INCLUSION AT GHz FREQUENCIES
TL;DR: In this paper, the authors considered the long wave approximation for electromagnetic response of the generalized infinite chain and developed effective medium theory for two types of two component composite metamaterials, one composed of a host of a dielectric material embedded periodically with spherical inclusions and the other is a 2-D sandwich metammaterial structure in which the central material contains a chain of infinitely long metallic cylinders and the lateral slabs are embedded with spherical metallic inclusions.
Book ChapterDOI
Microwave Properties of Dielectric Materials
JS Mandeep,Loke Ngai Kin +1 more
TL;DR: In this article, the authors present the synthesis and characterization of new dielectric material compositions and the design, implementation and testing of a prototype DRS antenna and filter utilizing the fabricated DRS material.
Journal ArticleDOI
Microwave Properties of Bismuth Lanthanum Titanate Ceramic Substrate and its Effects with Various Shapes
TL;DR: In this paper, a new composition of high permittivity dielectric material and its effects at microwave frequencies with different shapes is proposed, and the performance and characteristics of the material will be studied along with its RF application on different structures.
References
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Book
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Journal ArticleDOI
Negative Refraction Makes a Perfect Lens
TL;DR: The authors' simulations show that a version of the lens operating at the frequency of visible light can be realized in the form of a thin slab of silver, which resolves objects only a few nanometers across.
Journal ArticleDOI
The Electrodynamics of Substances with Simultaneously Negative Values of ∊ and μ
Journal ArticleDOI
Controlling Electromagnetic Fields
TL;DR: This work shows how electromagnetic fields can be redirected at will and proposes a design strategy that has relevance to exotic lens design and to the cloaking of objects from electromagnetic fields.
Journal ArticleDOI
Metamaterials and negative refractive index.
TL;DR: Recent advances in metamaterials research are described and the potential that these materials may hold for realizing new and seemingly exotic electromagnetic phenomena is discussed.