We perform a theoretical investigation on the Goos-Häenchen shift (the lateral shift) in one-dimensional photonic crystals (1DPCs) containing left-handed (LH) metamaterials. The effect was studied by use of a Gaussian beam. We show that the giant lateral displacement is due to the localization of the electromagnetic wave which can be both positive and negative depending on the incidence angle o...

An exact solution is obtained for the electromagnetic field due to an electric current source near graphene located at the interface between two dielectrics. The field is obtained in terms of dyadic Green’s functions represented as Sommerfeld integrals. The graphene is modeled as an infinitely-thin surface characterized by a surface conductance σ, which could be obtained via microscopic theory ...

Examples: Sound waves (pressure waves) in air (or in any gas or solid or liquid) Waves on a stretched string Waves on the surface of water "The Wave" at the ballpark stadium. The medium is the people. Electromagnetic waves (light) – this is the only kind of wave which does not require a medium. EM waves can travel in vacuum. This was quite a surprise to 19 th century physicists who had trouble ...

When a monochromatic electromagnetic plane wave is incident on an infinitely extending surface with the translation invariance property, a curious phenomenon often takes place at a low grazing angle of incidence, at which the total wave field vanishes and a dark shadow appears. This paper looks for physical and mathematical reasons why such a shadow occurs. Three cases are considered: wave refl...

Near-field ranges operate by measuring the electromagnetic field near the antenna and then mathematically transforming the data to any arbitrary location. Near-field operations are a form of microwave holography. The wave front measurements are normally made on a planar, spherical or cylindrical surface. This paper discusses primarily the planar configurations as used in the measurement of larg...

An electromagnetic band gap (EBG) material is a periodic surface specifically designed to have certain electromagnetic properties at specific frequencies. The term “metamaterial” is sometimes used to describe such engineered surfaces. Metamaterials (“meta” means “beyond” in Greek) are man-made materials not found in nature and designed by placing tiny resonant structures at regularly spaced dis...

This text reviews the state of the art of the Discontinuous Galerkin (DG) method applied to the solution of the Maxwell’s equations in Time Domain (TD). The work is divided into two parts. In the first part, the mathematical formulation of the DGTD method, together with a review and a discussion on the different ways to implement it is presented. The second part presents models and techniques t...

We developed composite electromagnetic wave absorbers made of fine aluminum particles dispersed in a polystyrene medium and evaluated their properties in order to realize metal-backed single-layer electromagnetic wave absorbers with a good absorption property in the GHz region. Both the magnetization and the magnetic loss caused by the eddy current flowing on the surface of the aluminum particl...

From the asymptotic behavior of the plane wave spectrum, a simple method is derived for determining the minimum convex closed surface in which the sources of a given acoustic or electromagnetic farfield pattern can be located.