Applied Physics B

, Volume 73, Issue 4, pp 299–304

Influence of the cross section and the permittivity on the plasmon-resonance spectrum of silver nanowires

Authors

  • J.P. Kottmann
    • Electromagnetic Fields and Microwave Electronics Laboratory, Swiss Federal Institute of Technology, ETZ G96, ETH-Zentrum, 8092 Zurich, Switzerland
  • O.J.F. Martin
    • Electromagnetic Fields and Microwave Electronics Laboratory, Swiss Federal Institute of Technology, ETZ G96, ETH-Zentrum, 8092 Zurich, Switzerland

DOI: 10.1007/s003400100698

Cite this article as:
Kottmann, J. & Martin, O. Appl Phys B (2001) 73: 299. doi:10.1007/s003400100698
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Abstract.

We investigate the plasmon resonances for silver nanowires with a non-regular cross section. To study the relationship between the cross section and the spectrum of the plasmon resonances, we consider cross sections evolving from a rectangular shape to a triangular one. In particular, we study the influence of the sharpness of a corner on the near-field enhancement at the vicinity of a particle and discuss its implications for surface-enhanced Raman scattering. We also investigate the influence of the absorption on the plasmon-resonance spectrum and on the near-field enhancement.

PACS: 73.20.Mf; 78.67.-n; 87.64.Je

Copyright information

© Springer-Verlag 2001