Abstract

In this paper we review the resonance conditions of periodic indentations in metallic layers and evaluate their potential for surface sensing of analytes. A review of significant contributions of nanohole arrays for sensing is presented in a first section. It is then followed by a theoretical analysis of their optical properties using coupled mode theory and an evaluation of their potential for sensing. The sensitivity, resolution, and field distribution are presented as a function of the different parameters of the metal film (periodicity, hole size, and thickness) to determine the optimal design for sensing. The focus of this paper is made on 1-D nanoslit arrays and 2-D square nanohole arrays to identify general considerations regarding sensing experiments using these types of structure. We include a MATLAB user interface, also available as a standalone application, that plots the transmission and reflection spectrum as well as the field distribution of nanohole arrays.

© 2017 Optical Society of America

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Supplementary Material (2)

NameDescription
» Code 1       Matlab user interface for the transmission and reflection spectra of nanohole arrays and the field distribution.
» Code 2       Standalone applet (Matlab Runtime) for the transmission and reflection spectra of nanohole arrays and the field distribution.

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