Journal ArticleDOI
Linear and Nonlinear Homogenized Composite Mediums as Metamaterials
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TLDR
In this paper, the constitutive parameters of homogenized composite mediums (HCMs) may be estimated through the implementation of well-established homogenization formalisms, such as those of Maxwell Garnett and Bruggeman, as well as the more comprehensive strong-property-fluctuation theory, in the context of HCM metamaterials.Abstract:
Metamaterials are artificial composites which are characterized by physical properties that are not possessed, either to the same extent or at all, by their component phases. Homogenization provides a means of conceptualizing such metamaterials. The constitutive parameters of homogenized composite mediums (HCMs) may be estimated through the implementation of well-established homogenization formalisms. In particular, those of Maxwell Garnett and Bruggeman, as well as the more comprehensive strong-property-fluctuation theory, are discussed here in the context of HCM metamaterials. We present a survey of five generic examples of metamaterials; each example is envisaged as an HCM. The unusual structures and properties of these HCM metamaterials are emphasized. First, we examine bianisotropic HCMs as metamaterials. While bianisotropy is rarely observed in naturally occurring materials, bianisotropic HCMs may be readily conceptualized. Second, an anomalous form of plane wave propagation known as Voigt wave prop...read more
Citations
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Journal ArticleDOI
Microwave Properties of Ice-Phase Hydrometeors for Radar and Radiometers: Sensitivity to Model Assumptions
TL;DR: In this paper, a simplified framework is presented for assessing the qualitative sensitivities of computed microwave properties, satellite brightness temperatures, and radar reflectivities to assumptions concerning the physical properties of ice-phase hydrometeors.
Posted Content
On the effective permittivity of silver-insulator nanocomposites
TL;DR: The Bruggeman formalism provides an estimate of the effective permittivity of a composite material comprising two constituent materials, with each constituent material being composed of electrically small particles as mentioned in this paper.
Journal ArticleDOI
On the Bergman–Milton bounds for the homogenization of dielectric composite materials
TL;DR: In this paper, the Bergman-Milton bounds on the effective permittivity of a composite material comprising two isotropic dielectric materials were revisited in light of the recent emergence of metamaterials.
Journal ArticleDOI
On the effective permittivity of silver-insulator nanocomposites
TL;DR: The Bruggeman formalism provides an estimate of the effective permittivity of a composite material comprising two constituent materials, with each constituent material being composed of electrically small particles as mentioned in this paper.
Journal ArticleDOI
Effective surface conductivity of optical hyperbolic metasurfaces: from far-field characterization to surface wave analysis
Oleh Yermakov,Dmitry V. Permyakov,Filipp V. Porubaev,Pavel A. Dmitriev,Anton Samusev,Ivan Iorsh,Radu Malureanu,Andrei V. Lavrinenko,Andrey Bogdanov +8 more
TL;DR: It is shown that a local surface conductivity tensor well describes optical properties of a resonant plasmonic hyperbolic metasurface both in the far-field and in the near-field regimes, where spatial dispersion usually plays a crucial role.
References
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Journal ArticleDOI
The Electrodynamics of Substances with Simultaneously Negative Values of ∊ and μ
Journal ArticleDOI
Experimental Verification of a Negative Index of Refraction
TL;DR: These experiments directly confirm the predictions of Maxwell's equations that n is given by the negative square root ofɛ·μ for the frequencies where both the permittivity and the permeability are negative.
Journal ArticleDOI
Composite Medium with Simultaneously Negative Permeability and Permittivity
TL;DR: A composite medium, based on a periodic array of interspaced conducting nonmagnetic split ring resonators and continuous wires, that exhibits a frequency region in the microwave regime with simultaneously negative values of effective permeability and permittivity varepsilon(eff)(omega).
Journal ArticleDOI
Berechnung verschiedener physikalischer Konstanten von heterogenen Substanzen. I. Dielektrizitätskonstanten und Leitfähigkeiten der Mischkörper aus isotropen Substanzen
TL;DR: In this article, the Berechnung der dielektrizitatatkonstanten and der Leitfahigkeiten fur Elektriatitat and Warme der Mischkorper aus isotropen Bestandteilen behandelt.
Journal ArticleDOI
Colours in Metal Glasses and in Metallic Films
TL;DR: In this paper, it was shown that the presence of many of these minute spheres to a wave-length of light in the glass will account for all the optical properties of "regular" gold ruby glass, and that the irregularities in colour and in polarisation effects sometimes exhibited by gold glass are due to excessive distance between consecutive gold particles or to excessive size of such particles.
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