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The Scientific World Journal
Volume 2015 (2015), Article ID 724123, 8 pages
http://dx.doi.org/10.1155/2015/724123
Research Article

Numerical Study of Plasmonic Efficiency of Gold Nanostripes for Molecule Detection

Group for Automatic Mesh Generation and Advanced Methods, Gamma3 (UTT-INRIA), University of Technology of Troyes, 12 rue Marie Curie-CS 42060, 10004 Troyes Cedex, France

Received 10 October 2014; Accepted 21 January 2015

Academic Editor: Dean Deng

Copyright © 2015 Thomas Grosges and Dominique Barchiesi. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

In plasmonics, the accurate computation of the electromagnetic field enhancement is necessary in determining the amplitude and the spatial extension of the field around nanostructures. Here, the problem of the interaction between an electromagnetic excitation and gold nanostripes is solved. An optimization scheme, including an adaptive remeshing process with error estimator, is used to solve the problem through a finite element method. The variations of the electromagnetic field amplitude and the plasmonic active zones around nanostructures for molecule detection are studied in this paper taking into account the physical and geometrical parameters of the nanostripes. The evolution between the sizes and number of nanostripes is shown.