Analytical solution for wave propagation through a graded index interface between a right-handed and a left-handed material
Artikel i vetenskaplig tidskrift, 2009

We have investigated the transmission and reflection properties of structures incorporating left-handed materials with graded index of refraction. We present an exact analytical solution to Helmholtz' equation for a graded index profile changing according to a hyperbolic tangent function along the propagation direction. We derive expressions for the field intensity along the graded index structure, and we show excellent agreement between the analytical solution and the corresponding results obtained by accurate numerical simulations. Our model straightforwardly allows for arbitrary spectral dispersion.

electrodynamics

graded index

metamaterials

continuous media

analytical solution

Författare

Mariana Dalarsson

Philippe Tassin

Chalmers, Teknisk fysik, Kondenserade materiens teori

Optics Express

1094-4087 (ISSN)

Vol. 17 6747-6752

Styrkeområden

Nanovetenskap och nanoteknik

Ämneskategorier

Atom- och molekylfysik och optik

Annan elektroteknik och elektronik

Den kondenserade materiens fysik

DOI

10.1364/OE.17.006747