Plasmonics

, Volume 8, Issue 4, pp 1613–1619

Propagation Loss of Long-Range Surface Plasmon Polariton Gold Stripe Waveguides in the Thin-Film Limit

  • Ilya Slovinsky
  • Gudmundur K. Stefansson
  • Anna Kossoy
  • Kristjan Leosson
Article

DOI: 10.1007/s11468-013-9578-y

Cite this article as:
Slovinsky, I., Stefansson, G.K., Kossoy, A. et al. Plasmonics (2013) 8: 1613. doi:10.1007/s11468-013-9578-y

Abstract

Propagation loss experienced by long-range plasmon polaritons in ultrathin gold stripe waveguides embedded in different polymer cladding materials was studied and correlated with atomic-scale characterization of the gold film structure. We identify the main sources of experimentally observed propagation loss which deviates from ideal values in the thin-film limit. Increased loss can be translated to an increased effective thickness of the ultrathin films due to incomplete surface coverage and the presence of diffuse interfaces, both of which depend significantly on the choice of cladding material. The results illustrate the importance of atomic-scale dynamics of metal film formation for the selection of optimum substrate materials for surface plasmon polariton waveguides, resonant transmission structures, and semitransparent electrical contacts.

Keywords

Surface plasmons Optical waveguides Optical polymers Ultrathin metal films 

Copyright information

© Springer Science+Business Media New York 2013

Authors and Affiliations

  • Ilya Slovinsky
    • 1
    • 2
    • 3
  • Gudmundur K. Stefansson
    • 1
  • Anna Kossoy
    • 1
  • Kristjan Leosson
    • 1
  1. 1.Science InsituteUniversity of IcelandReykjavikIceland
  2. 2.Ioffe Physical Technical Institute of the Russian Academy of SciencesSt. PetersburgRussia
  3. 3.Saint Petersburg Academic University-Nanotechnology Research and Education Center of the Russian Academy of SciencesSt. PetersburgRussia

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