Journal ArticleDOI
Magnetism from conductors and enhanced nonlinear phenomena
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In this paper, it was shown that microstructures built from nonmagnetic conducting sheets exhibit an effective magnetic permeability /spl mu/sub eff/, which can be tuned to values not accessible in naturally occurring materials.Abstract:
We show that microstructures built from nonmagnetic conducting sheets exhibit an effective magnetic permeability /spl mu//sub eff/, which can be tuned to values not accessible in naturally occurring materials, including large imaginary components of /spl mu//sub eff/. The microstructure is on a scale much less than the wavelength of radiation, is not resolved by incident microwaves, and uses a very low density of metal so that structures can be extremely lightweight. Most of the structures are resonant due to internal capacitance and inductance, and resonant enhancement combined with compression of electrical energy into a very small volume greatly enhances the energy density at critical locations in the structure, easily by factors of a million and possibly by much more. Weakly nonlinear materials placed at these critical locations will show greatly enhanced effects raising the possibility of manufacturing active structures whose properties can be switched at will between many states.read more
Citations
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Planar negative refractive index media using periodically L-C loaded transmission lines
TL;DR: In this article, the authors proposed an alternate perspective on the design and function of such materials that exploits the well-known L-C distributed network representation of homogeneous dielectrics.
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Metamaterial Electromagnetic Wave Absorbers
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Journal ArticleDOI
Equivalent-circuit models for split-ring resonators and complementary split-ring resonators coupled to planar transmission lines
Juan D. Baena,Jordi Bonache,Ferran Martin,R.M. Sillero,Francisco Falcone,Txema Lopetegi,Miguel A. G. Laso,Joan Garcia-Garcia,Ignacio Gil,M.F. Portillo,Mario Sorolla +10 more
TL;DR: In this paper, a new approach for the development of planar metamaterial structures is developed, and analytical equivalent circuit models are proposed for isolated and coupled split-ring resonators/CSRRs coupled to planar transmission lines.
Journal ArticleDOI
Self-Assembled Plasmonic Nanoparticle Clusters
Jonathan A. Fan,Chihhui Wu,Kui Bao,Jiming Bao,Rizia Bardhan,Naomi J. Halas,Vinothan N. Manoharan,Peter Nordlander,Gennady Shvets,Federico Capasso +9 more
TL;DR: It is shown that self-assembled clusters of metal-dielectric spheres are the basis for nanophotonic structures, and plasmon modes exhibiting strong magnetic and Fano-like resonances emerge.
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Superlenses to overcome the diffraction limit.
Xiang Zhang,Zhaowei Liu +1 more
TL;DR: The physics of such superlenses and the theoretical and experimental progress in this rapidly developing field ofificially engineered metamaterials are reviewed.
References
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TL;DR: If a three-dimensionally periodic dielectric structure has an electromagnetic band gap which overlaps the electronic band edge, then spontaneous emission can be rigorously forbidden.
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Strong localization of photons in certain disordered dielectric superlattices
TL;DR: A new mechanism for strong Anderson localization of photons in carefully prepared disordered dielectric superlattices with an everywhere real positive dielectrics constant is described.
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Extremely Low Frequency Plasmons in Metallic Mesostructures
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Plasma Losses by Fast Electrons in Thin Films
TL;DR: In this paper, the angle energy distribution of a fast electron losing energy to conduction electrons in a thick metallic foil has been derived assuming that the conduction electron constitute a Fermi-Dirac gas and that the fast electron undergoes only small fractional energy and momentum changes.
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A Collective Description of-Electron Interactions: III. Coulomb Interactions in a Degenerate Electron Gas
TL;DR: In this article, the behavior of the electrons in a dense electron gas is analyzed quantum-mechanically by a series of canonical transformations, and the results are related to the classical density fluctuation approach and Tomonaga's one-dimensional treatment of the degenerate Fermi gas.