In this work, we study how extraordinary electromagnetic transmission through an array of holes in a metallic film appears as a function of the number of holes and their distribution. In order to do that, we have used a theoretical formalism able to analyze the optical properties of finite collections of apertures placed at arbitrary positions in a metallic film. First, we analyze how the total transmission in a hexagonal 2D hole array evolves as the number of holes in the array is increased. Secondly, we study what is the minimal system showing extraordinary electromagnetic transmission. We find numerically that a linear chain of holes can be considered as the basic entity with extraordinary transmission properties.

Date Published: 18 August 2005
PDF: 9 pages
Proc. SPIE 5927, Plasmonics: Metallic Nanostructures and Their Optical Properties III, 592719 (18 August 2005); doi: 10.1117/12.616284

Published in SPIE Proceedings Vol. 5927:
Plasmonics: Metallic Nanostructures and Their Optical Properties III
Mark I. Stockman, Editor(s)