In this paper, we present a reflection analysis of a plane wave incident on an interface of a novel electric-magnetic uniaxially anisotropic medium characterized by extreme constitutive parameters: very large transverse and very small longitudinal components of permittivity and permeability tensors. The novelty of the medium is specified by choosing the particular material properties. Such materials have been proposed for the realization of a perfectly matched layer and DB boundary conditions. DB boundary conditions require cancellation of normal components of electric and magnetic fluxes on the boundary surface. We study the reflection from the interface of the uniaxial medium by assuming that the optic axis of the material is arbitrarily oriented. We discuss the effect of the direction of the optic axis on the reflection characteristics and emphasize on its importance for the realization of electromagnetic absorbers. The behavior of the medium is also examined by varying the direction of the plane of incidence with respect to the plane of the optic axis. From numerical results we note that the medium shows very interesting properties of behaving as a perfect reflector, a perfect transmitter and a polarization inverter depending upon the direction of the optic axis and the plane of incidence.
Plane-wave reflection from the Interface of a novel uniaxial medium with extreme parameters / Khalid, Muhammad; Tedeschi, Nicola; Frezza, Fabrizio. - STAMPA. - (2016), pp. 1-4. (Intervento presentato al convegno 2016 URSI International Symposium on Electromagnetic Theory tenutosi a Helsinki nel 14-18 agosto).
Plane-wave reflection from the Interface of a novel uniaxial medium with extreme parameters
KHALID, MUHAMMAD;TEDESCHI, NICOLA;FREZZA, Fabrizio
2016
Abstract
In this paper, we present a reflection analysis of a plane wave incident on an interface of a novel electric-magnetic uniaxially anisotropic medium characterized by extreme constitutive parameters: very large transverse and very small longitudinal components of permittivity and permeability tensors. The novelty of the medium is specified by choosing the particular material properties. Such materials have been proposed for the realization of a perfectly matched layer and DB boundary conditions. DB boundary conditions require cancellation of normal components of electric and magnetic fluxes on the boundary surface. We study the reflection from the interface of the uniaxial medium by assuming that the optic axis of the material is arbitrarily oriented. We discuss the effect of the direction of the optic axis on the reflection characteristics and emphasize on its importance for the realization of electromagnetic absorbers. The behavior of the medium is also examined by varying the direction of the plane of incidence with respect to the plane of the optic axis. From numerical results we note that the medium shows very interesting properties of behaving as a perfect reflector, a perfect transmitter and a polarization inverter depending upon the direction of the optic axis and the plane of incidence.File | Dimensione | Formato | |
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