Applied Physics B

, Volume 115, Issue 2, pp 237–246

Comparison between discrete dipole approximation and other modelling methods for the plasmonic response of gold nanospheres

Authors

    • Mechanische VerfahrenstechnikUniversity of Bremen
    • School of Mathematics and PhysicsThe University of Queensland
  • G. M. Huda
    • Department of Electrical and Computer EngineeringUniversity of Kentucky
  • E. U. Donev
    • Department of Electrical and Computer EngineeringUniversity of Kentucky
  • V. Schmidt
    • Mechanische VerfahrenstechnikUniversity of Bremen
  • J. T. Hastings
    • Department of Electrical and Computer EngineeringUniversity of Kentucky
  • M. Pinar Mengüç
    • School of EngineeringÖzyeğin University
  • T. Wriedt
    • Institut für WerkstofftechnikUniversity of Bremen
Article

DOI: 10.1007/s00340-013-5594-z

Cite this article as:
Loke, V.L.Y., Huda, G.M., Donev, E.U. et al. Appl. Phys. B (2014) 115: 237. doi:10.1007/s00340-013-5594-z

Abstract

We investigate the plasmonic response of gold nanospheres calculated using discrete dipole approximation validated against the results from other discretization methods, namely the finite-difference time-domain method and the finite-element methods. Comparisons are also made with calculations from analytical methods such as the Mie solution and the null-field method with discrete sources. We consider the nanoparticle interacting with the incident field both in free space and sitting on a planar substrate. In the latter case, discrete dipole approximation with surface interaction is used; this includes the interaction with the ‘image dipoles’ using Sommerfeld integration.

Copyright information

© Springer-Verlag Berlin Heidelberg 2013