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Plasmonic anisotropic metasurfaces: from far-field measurements to near-field properties
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Paper Abstract

One of the most important problems of metamaterials and metasurfaces research is the derivation and the analysis of the effective parameters. They allow to examine the structure without singling out each element and it is the significant advantage for practical use. Recently, it has been shown that in virtue of a subwavelength thickness metasurfaces can be described within an effective conductivity approach. Such an effective surface conductivity describes the properties of a metasurface in the far-field as well as in the near-field. We derive and analyze the effective surface conductivity of a plasmonic resonant anisotropic metasurface theoretically and numerically. With the help of obtained effective conductivity we study the near-field properties of this metasurface, in particular, the equal frequency contours of surface waves. We show the topological transition from elliptical to hyperbolic-like dispersion regime for the surface waves on a hyperbolic metasurface. Finally, we study the influence of spatial dispersion on the eigenmodes spectrum and analyze the hyperbolic regime of a metasurface with strong spatial dispersion.

Paper Details

Date Published: 7 May 2018
PDF: 6 pages
Proc. SPIE 10671, Metamaterials XI, 1067118 (7 May 2018); doi: 10.1117/12.2306801
Show Author Affiliations
Oleh Y. Yermakov, ITMO Univ. (Russian Federation)
Dmitry V. Permyakov, ITMO Univ. (Russian Federation)
Pavel A. Dmitriev, ITMO Univ. (Russian Federation)
Anton K. Samusev, ITMO Univ. (Russian Federation)
Ivan V. Iorsh, ITMO Univ. (Russian Federation)
Andrei V. Lavrinenko, DTU Fotonik (Denmark)
Technical Univ. of Denmark (Denmark)
Andrey A. Bogdanov, ITMO Univ. (Russian Federation)


Published in SPIE Proceedings Vol. 10671:
Metamaterials XI
Allan D. Boardman; Anatoly V. Zayats; Kevin F. MacDonald, Editor(s)

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