Surface Bloch waves in metamaterial and metal-dielectric superlattices
Optics
2009-12-16 v1
Abstract
We study the properties of electromagnetic Bloch waves in semi-infinite periodic structures created by alternating metamaterial and dielectric layers. We derive and analyze the dispersion relations in the long-wavelength limit for both TE- and TM-polarized surface Bloch modes, for magnetic metamaterials with negative refraction and metal-dielectric plasmonic superlattices. We reveal that in the subwavelength regime the bulk modes are characterized by three different refractive indices ("tri-refringence") while the surface modes can propagate parallel to the Bloch wavevector and along the interface between superlattice and semi-infinite dielectric.
Keywords
Cite
@article{arxiv.0906.0404,
title = {Surface Bloch waves in metamaterial and metal-dielectric superlattices},
author = {Slobodan M. Vukovic and Ilya V. Shadrivov and Yuri S. Kivshar},
journal= {arXiv preprint arXiv:0906.0404},
year = {2009}
}
Comments
4 pages, 4 figures