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Proceedings Paper

Experimental determination of principal permittivities and hyperbolic equi-frequency surfaces in silver nanowire arrays
Author(s): Joerg Schilling; Jyotirmayee Kanungo
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Paper Abstract

The polarisation dependent optical properties of silver nanowire arrays are investigated by angular resolved transmission measurements. The corresponding spectra show clear Fabry-Perot oscillations, which exhibit an unusual shift towards longer wavelengths for the extraordinary waves. From the peak shift both principal dielectric functions of the metamaterial are determined and compared with effective medium theories. Furthermore the equifrequency contours in wave vector diagrams were mapped from the experimental data and compared with theoretical plots confirming the hypberbolic dispersion relation for TM polarised waves.

Paper Details

Date Published: 29 April 2010
PDF: 7 pages
Proc. SPIE 7711, Metamaterials V, 77111T (29 April 2010); doi: 10.1117/12.854190
Show Author Affiliations
Joerg Schilling, Queen's Univ. Belfast (United Kingdom)
Martin-Luther-Univ. Halle-Wittenberg (Germany)
Jyotirmayee Kanungo, Queen's Univ. Belfast (United Kingdom)

Published in SPIE Proceedings Vol. 7711:
Metamaterials V
Nigel P. Johnson; Ekmel Özbay; Richard W. Ziolkowski; Nikolay I. Zheludev, Editor(s)

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