Applied Physics B

, Volume 93, Issue 1, pp 139–143

Comparison of gold and silver dispersion laws suitable for FDTD simulations


DOI: 10.1007/s00340-008-3202-4

Cite this article as:
Vial, A. & Laroche, T. Appl. Phys. B (2008) 93: 139. doi:10.1007/s00340-008-3202-4


We show that it is possible to increase the accuracy of gold and silver permittivity description by using the Drude–critical points model rather than the widely used Drude–Lorentz model. We also show the effect of this improvement on the extinction efficiency and near-field intensity precision.


42.25.Fx 71.45.Gm 

Copyright information

© Springer-Verlag 2008

Authors and Affiliations

  1. 1.Laboratoire de Nanotechnologie et d’Instrumentation Optique, Institut Charles DelaunayUniversité de Technologie de Troyes—CNRS FRE 2848Troyes CedexFrance
  2. 2.Département de Physique et de Métrologie des Oscillateurs, Institut FEMTO-ST—CNRS UMR 6174Université de Franche-ComtéBesançon CedexFrance

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