Simple closed-form solution to predict short-range surface plasmons in thin films bounded by asymmetric media and its application to hole arrays

María Lorente Crespo, Carolina Mateo-Segura

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Abstract

Thin metallic films bounded by two dielectric media can support long- and short-range surface plasmon polaritons. The dispersion relation associated with these hybrid modes is given by a complex transcendental equation that can only be solved numerically. In this contribution, a simple approximate analytical solution for the short-range modes is derived. To validate the proposed analytical solution, short-range surface plasmon polaritons in a two-dimensional periodic array of small holes are studied and compared to full-wave simulations. The results prove a spectral response in excellent agreement.
Original languageEnglish
Article number4800908
JournalIEEE Photonics Journal
Volume8
Issue number1
Early online date27 Jan 2016
DOIs
Publication statusPublished - Feb 2016

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