Experimental determination of principal permittivities and hyperbolic equi-frequency surfaces in silver nanowire arrays

Joerg Schilling; Jyotirmayee Kanungo

doi:10.1117/12.854190

29 April 2010 Experimental determination of principal permittivities and hyperbolic equi-frequency surfaces in silver nanowire arrays

Joerg Schilling, Jyotirmayee Kanungo

Author Affiliations +

Proceedings Volume 7711, Metamaterials V; 77111T (2010) https://doi.org/10.1117/12.854190
Event: SPIE Photonics Europe, 2010, Brussels, Belgium

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.

Citation Download Citation

Joerg Schilling and Jyotirmayee Kanungo "Experimental determination of principal permittivities and hyperbolic equi-frequency surfaces in silver nanowire arrays", Proc. SPIE 7711, Metamaterials V, 77111T (29 April 2010); https://doi.org/10.1117/12.854190

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