Showing papers in "Metamaterials in 2007"

TL;DR: It is pointed out that the boundary between “ordinary” materials and metamaterials is difficult to draw because also many everyday natural materials are dielectric mixtures which may display very surprising and non-linear macroscopic response functions.

TL;DR: In this article, the authors show that general relativity lends the theoretical tools for designing devices made of metamaterials, such as perfect invisibility devices, perfect lenses, the optical Aharonov-Bohm effect and electromagnetic analogs of the event horizon.

TL;DR: The circumstances leading to the birth of the subject of metamaterials are analysed in this paper, where the seminal papers, instrumental in establishing the initial momentum, are enumerated.

TL;DR: In this paper, it was shown that for Bloch lattices and only for them the Bloch material parameters can be directly extracted from the S-parameters of a finite-thickness metamaterial slab.

TL;DR: In this article, the resonant frequency of split-ring resonators and double-bar resonators used to create magnetic response at terahertz and optical frequencies was investigated.

TL;DR: In this article, the properties of periodic chains of magnetically coupled L-C resonators supporting magneto-inductive (MI) waves are examined in the case when non-nearest neighbor interactions are significant.

TL;DR: In this article, the authors considered single and double grids of periodically arranged interacting wires loaded with a certain distributed reactive impedance, and calculated averaged fields to assign mesoscopic material parameters for the proposed grid structures.

TL;DR: Negative-refractive-index transmission line (NRI-TL) metamaterials comprise transmission lines loaded periodically with series capacitors and shunt inductors, such that the phase flow and power flow are contra-directional on the lines as mentioned in this paper.

TL;DR: In this article, the dispersion, impedance matching and resolution characteristics of an isotropic three-dimensional flat lens (superlens) are studied based on cubic meshes of interconnected transmission lines and lumped loads.

TL;DR: A survey of approaches to the design of one and two-dimensional randomly rough surfaces that scatter or transmit light with specified angular, coherence, spatial, or wavelength properties of the scattered or transmitted field is presented in this article.

TL;DR: In this article, the scaling of negative magnetic response of the SRR from microwave to upper THz frequencies was studied and it was shown that the linear scaling breaks down for SRR sizes below the order of 1mm due to the contribution of the finite electron mass to the inductance of the effective LC oscillator.

TL;DR: In this article, the magnetic effects in the metal/dielectric heterostructure, consisting of a thin metallic layer with the array of parallel subwavelength slits and a uniform dielectric layer magnetized perpendicular to its plane, are investigated.

TL;DR: In this article, different models of metamaterial-based surfaces introducing a zero degree reflection phase shift to incident wavelengths are firstly studied numerically using finite-element method analysis where the bandwidth and operation frequency are predicted.

TL;DR: In this article, the dispersion relation for polarized light transmitting through a one-dimensional superlattice composed of uniformly arranged layers made of ordinary dielectric and negative refraction metamaterials is calculated with finite element method.

TL;DR: In this article, the authors present theory, simulation, and experimental results of metamaterials operating at terahertz frequencies, and demonstrate external control of planar arrays of metAMaterials patterned on semiconducting substrates.

TL;DR: In this article, the transmission of time-modulated Gaussian beam through the RHM-LHM layered structures with dispersive, lossy, and magnetic layers is analyzed using the transfer matrix method.

TL;DR: In this paper, a full theory of gain control up to the THz frequency range is presented, together with a comprehensive study of diffraction-managed solitons, which can be achieved through externally imposed influences such as gyroelectromagnetic effects.

TL;DR: In this article, a method for modeling the resonant frequency response of infra-red light, in the range of 2 to 10 microns, reflected from metallic spilt ring resonators (SRRs) fabricated on a silicon substrate is presented.

TL;DR: Hong-Ou-Mandel interferometer was explored to investigate shape distortion and phase dispersion of single photon wavepacket in surface plasmon assisted transmission as discussed by the authors.

TL;DR: In this article, a class of liquid crystalline photonic metamaterials that exhibit tunable negative-zero-positive refractive indices was described and incorporated into a gain medium such as laser dye.

TL;DR: In this article, the authors show how metamaterials can be used either to enhance the coupling values or to reduce the crosstalk between the strips of coupled microstriplines.

TL;DR: In this paper, a comparative analysis and modeling of optical properties of anisotropic conventional media and metamaterials is carried out, and conditions and possible advantages of a controlled transformation of the radiation characteristics by the γ-negative index (γ)-metamaterial are analyzed.

TL;DR: In this paper, numerically transmittance of polarized electromagnetic wave through different binary multilayered structures made of left and right-handed materials is investigated, and the transmittances are calculated as a function of wavelength, discrepancy angle, refractive index and superlattices' parameters.

TL;DR: In this paper, the optical response of binary-particle nanoparticles in the optical frequency domain has been analyzed for a periodic array of identical noble-metal binary nanoparticles embedded into a dielectric host matrix.

TL;DR: In this article, a Gaussian light pulse and a CW Gaussian beam refracted at the boundary of right and left-handed media are modified due to material dispersion, and the group velocity of a negatively refracted pulse is parallel to the direction of energy transport and anti-parallel to phase velocity.

TL;DR: In this paper, the Minkowski constitutive relations of planewave propagation in a homogeneous, instantaneously responding, dielectric-magnetic material that is isotropic in the co-moving reference frame, can be classified as positive-, negative-, and orthogonal phase-velocity (PPV, NPV, and OPV) propagation, depending upon the magnitude and direction of the reference frame's velocity relative to the material.

TL;DR: In this article, the 2D plane wave expansion (PWE) method and 2D finite-difference time-domain (FDTD) method with perfectly matched layers were applied to several examples of PhC waveguide structure simulations, of two types of guides.

TL;DR: In this article, a modal method with a transmission line formulation was employed to electromagnetic analysis of two types of photonic metamaterials, and the effective parameters for an array of split ring resonators and plate-pairs were achieved via calculation of transmission and reflection coefficients and a retrieval procedure.