Plasmonic metamaterial cloaking at optical frequencies (2008)
Bilotti, Filiberto, Tricarico, Simone, Vegni, Lucio
In this paper, we present the design of cylindrical and spherical electromagnetic cloaks working at visible frequencies. The cloak design is based on the employment of layered structures consisting...
Split ring resonator-coupled enhanced transmission through a single subwavelength aperture (2008)
Aydin, Koray, Cakmak, A. Ozgur, Sahin, Levent, Li, Z., Bilotti, Filiberto, Vegni, Lucio, ...
We report the enhanced transmission of electromagnetic waves through a single subwavelength aperture by making use of the resonance behavior of a split ring resonator (SRR) at microwave frequencies....
Alù, Andrea, Bilotti, Filiberto, Engheta, Nader, Vegni, Lucio
The detailed theory of a single subwavelength conformal radiator that exploits the resonant properties of thin cylindrical metamaterial shells supporting leaky waves is presented. It is shown and...
Subwavelength Planar Leaky-Wave Components with Metamaterial Bilayers (2007)
Alù, Andrea, Bilotti, Filiberto, Engheta, Nader, Vegni, Lucio
The potential use of metamaterial planar bilayers for synthesizing compact subwavelength leaky-wave radiators in the microwave regime is analyzed in detail. In particular, the possibility of pairing...
Subwavelength, Compact, Resonant Patch Antennas Loaded With Metamaterials (2007)
Alù, Andrea, Bilotti, Filiberto, Engheta, Nader, Vegni, Lucio
We analyze the matching and radiation properties of subwavelength resonant patch antennas filled with double-negative, double-positive, and/or single-negative metamaterial blocks. Analyzing the...
Alu, Andrea, Bilotti, Filiberto, Engheta, Nader, Vegni, Lucio
U članku je dana analiza dvoslojnih planarnih metamaterijala s uzemljenom ravninom koji podržavaju cureće elektromagnetske valove. Nedavno predložene primjene ovakvih metamaterijala obuhvaćaju...
Metamaterial Covers Over a Small Aperture (2006)
Alù, Andrea, Bilotti, Filiberto, Engheta, Nader, Vegni, Lucio
Recently, there has been an increased interest in the problem of wave transmission through sub-wavelength apertures, following successful experimental demonstration by several groups for enhancing...
Alù, Andrea, Bilotti, Filiberto, Engheta, Nader, Vegni, Lucio
In this paper, we will provide an overview of our theoretical work on the role of metamaterial covers in dramatically enhancing the wave transmission through a subwavelength aperture over a perfectly...
Bilotti, Filiberto, Alù, Andrea, Engheta, Nader, Vegni, Lucio
In this paper, the theoretical justification and the numerical verification of the anomalous scattering from cavities partially filled with metamaterials are presented. A hybrid numerical formulation...
Dominantni mod gustoće struje na spiralnoj patch anteni (2004)
Alu, Andrea, Vegni, Lucio, Bilotti, Filiberto
U radu je prikazan privlačan i djelotvoran pristup proračunu i analitičkom prikazu spiralnih patch antena. Prvo je izveden aproksimativni analitički izraz za dominantni mod gustoće struje na...
Metamaterial covers over a small aperture (2004)
Alu, Andrea, Bilotti, Filiberto, Engheta, Nader, Vegni, Lucio
Recently, it has been experimentally shown by several other researchers in the physics community that a properly designed periodic corrugation of a metallic opaque screen may significantly enhance...