Exact analytical solution for oblique incidence on a graded index interface between a right-handed and a left-handed material
Artikel i vetenskaplig tidskrift, 2009

We have determined the scattering parameters of optical structures incorporating both left-handed metamaterials (LHM) and conventional ("right-handed") materials (RHM) for the case when the refractive index at the LHM-RHM interface is graded, for oblique incidence at an arbitrary angle and for arbitrary spectral dispersion. We derived an accurate analytical solution to Helmholtz' equation for the case of the refractive index gradient varying as a hyperbolic tangent where the steepness of the index transition may be arbitrary, even of the order of vacuum wavelength. We determined the expressions for the field intensity along the LHM-RHM structure with refractive index gradient. We show that there is an excellent agreement between our analytical results and the accurate numerical simulations done by finite element method.

metamaterials

analytical solution

graded index

oblique incidence

Författare

Mariana Dalarsson

Philippe Tassin

Chalmers, Teknisk fysik, Kondenserade materiens teori

Zoran Jaksic

Journal of Optoelectronic and Biomedical Materials

2066-0049 (ISSN)

Vol. 1 4 345-352

Styrkeområden

Nanovetenskap och nanoteknik

Ämneskategorier

Atom- och molekylfysik och optik

Annan elektroteknik och elektronik

Den kondenserade materiens fysik

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Skapat

2017-10-08