Comparing the transmission through ellipse and double-hole nano-photonic arrays in gold films

Author

Gordon, R. ; Leathem, B. ; Popescu, P.D. ; Kavanagh, K.L. ; Brolo, A.G.

Author_Institution

Dept. of Electr. & Comput. Eng., Victoria Univ., BC, Canada

fYear

2004

fDate

16-19 Aug. 2004

Firstpage

77

Lastpage

79

Abstract

The coupling mechanism in surface-plasmon enhanced optical transmission through square lattice arrays of nanoholes was investigated by considering two different bases for the array: ellipses and double-holes. A comparison was made between the transmission properties of these bases, and for different orientations of each basis. The two cases showed similar results when the bases were aligned along the lattice vector of the array. When the bases were rotated, however, the surface-plasmon resonance amplitude and polarization showed very different behavior between the double holes and the ellipses. These differences in behavior give insight into the surface-plasmon mode coupling through the nano-holes, which may be used to optimize these arrays for nano-photonic applications.

Keywords

gold; metallic thin films; nanostructured materials; nanotechnology; optical arrays; surface plasmon resonance; Au; double hole nanophotonic arrays; ellipse nanophotonic arrays; gold films; lattice vector; nanoholes; nanophotonic applications; square lattice arrays; surface plasmon enhanced optical transmission properties; surface plasmon mode coupling mechanism; surface plasmon resonance amplitude; surface plasmon resonance polarization; Gold; Lattices; Milling; Optical arrays; Optical coupling; Optical films; Optical polarization; Plasmons; Resonance; Ultrafast optics;

fLanguage

English

Publisher

ieee

Conference_Titel

Nanotechnology, 2004. 4th IEEE Conference on

Print_ISBN

0-7803-8536-5

Type

conf

DOI

10.1109/NANO.2004.1392255

Filename

1392255