Authors
Anne-Sophie Grimault, Alexandre Vial, Johan Grand, Marc Lamy de la Chapelle,
Title
Modeling of the near-field of metallic nanoparticle gratings: Localized Surface Plasmon Resonance and SERS applications
In
J. Microscopy
Volume
229
Issue
3
Pages
428–432
Publisher
Wiley
Year
2008
Publisher's URL
http://dx.doi.org/10.1111/j.1365-2818.2008.01923.x
Indexed by
Abstract
We numerically study the influence of the shape of gold nanostructures on the spectral position of their localized surface plasmon resonance and on Surface Enhanced Raman Scattering efficiency. Calculations are performed using a Finite-Difference Time-Domain (FDTD) method, whose accuracy for dispersive media is enhanced through the use of a Drude-Lorentz model. The relevance of this method is then pointed out by comparing the calculations with experimental data for both the plasmon resonance and the Raman signal enhancement. The influence of a thin layer of water is also investigated.
Affiliations
Offprint