Tunable Plasmon Resonance of a Touching Gold Cylinder Arrays

Tunable Plasmon Resonance of a Touching Gold Cylinder Arrays

Year:    2012

Author:    Geng-Hua Yan, Yan-Ying Xiao, Su-Xia Xie, Hong-Jian Li

Journal of Atomic and Molecular Sciences, Vol. 3 (2012), Iss. 3 : pp. 252–261

Abstract

We investigate the plasmon resonance of a touching gold cylinder arrays surrounded with air or dielectric. We show that the plasmon resonance is tunable by modulating the cylinder radius, the cylinder layer and refractive index of the dielectric. It is found resonance peak blue-shifts and splits as the gold cylinder radius reduces, width of the resonance peak gets much smaller as layer increases, and resonant peak red-shifts noticeably as dielectric refractive index increases. Based on electric field distributions at the resonance wavelengths we reveal the mechanism of the transmission enhancement. These phenomena are helpful for the design of potential optics devices.

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Journal Article Details

Publisher Name:    Global Science Press

Language:    English

DOI:    https://doi.org/10.4208/jams.091511.101811a

Journal of Atomic and Molecular Sciences, Vol. 3 (2012), Iss. 3 : pp. 252–261

Published online:    2012-01

AMS Subject Headings:    Global Science Press

Copyright:    COPYRIGHT: © Global Science Press

Pages:    10

Keywords:    touching gold cylinders surface plasmon electric field distributions.

Author Details

Geng-Hua Yan

Yan-Ying Xiao

Su-Xia Xie

Hong-Jian Li