Geometry dependence of surface plasmon polariton lifetimes in nanohole arrays

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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Author(s)

  • Dang Y. Lei
  • Jia Li
  • Antonio I. Fernández-Domínguez
  • Hock C. Ong
  • Stefan A. Maier

Detail(s)

Original languageEnglish
Pages (from-to)432-438
Journal / PublicationACS Nano
Volume4
Issue number1
Online published22 Dec 2009
Publication statusPublished - 26 Jan 2010
Externally publishedYes

Abstract

We study surface plasmon polariton lifetimes in two-dimensional arrays of blind holes on gold surfaces. The lifetimes are determined from the line widths of the resonant dips appearing in the specular reflection spectra. We find a strong dependence of lifetimes on the resonant wavelength and the hole geometry. Through both experiments and numerical simulations, we analyze the validity of the Rayleigh approximation and also explore the range of wavelengths and geometric parameters where it fails. Finally, we show that, within the range of geometries and wavelengths considered in our experiments, the behavior of surface plasmon polariton lifetimes can be understood as resulting from the interplay between the intrinsic metal absorption and the scattering of surface waves by single isolated holes.

Research Area(s)

  • Damping, Lifetime, Nanohole, Scattering, Surface plasmon polariton

Citation Format(s)

Geometry dependence of surface plasmon polariton lifetimes in nanohole arrays. / Lei, Dang Y.; Li, Jia; Fernández-Domínguez, Antonio I.; Ong, Hock C.; Maier, Stefan A.

In: ACS Nano, Vol. 4, No. 1, 26.01.2010, p. 432-438.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review