Dispersion, diffraction and surface waves in semi-infinite metal-dielectric superlattices

Slobodan Vukovic; Carlos J. Zapata-Rodríguez; Juan J. Miret; Zoran Jaksic

doi:10.1117/12.921885

1 May 2012 Dispersion, diffraction and surface waves in semi-infinite metal-dielectric superlattices

Slobodan Vukovic, Carlos J. Zapata-Rodríguez, Juan J. Miret, Zoran Jaksic

Proceedings Volume 8423, Metamaterials VII; 84231W (2012) https://doi.org/10.1117/12.921885
Event: SPIE Photonics Europe, 2012, Brussels, Belgium

Abstract

We investigate spatial-dispersion properties of hybrid surface waves propagating in the boundary of a semi-infinite layered metal-dielectric nanostructure. Electromagnetic fields can be dramatically affected by a nonlocal optical response of the plasmonic lattice. We demonstrate that the use of the so called effective medium approximation (EMA) is not justified if the thickness of a metallic layer becomes of the order of the metal skin depth. We compare the results obtained by means of EMA with computer solutions of Maxwell's equation, including losses in the metal.

Citation Download Citation

Slobodan Vukovic, Carlos J. Zapata-Rodríguez, Juan J. Miret, and Zoran Jaksic "Dispersion, diffraction and surface waves in semi-infinite metal-dielectric superlattices", Proc. SPIE 8423, Metamaterials VII, 84231W (1 May 2012); https://doi.org/10.1117/12.921885

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