Experimental comparison between conventional and hybrid long-range surface plasmon waveguide bends

Journal Article (Journal Article)

We report on the characterization of long-range surface plasmon waveguide bends at telecom wavelengths (λ=1550 nm). The structures consist of a thin Au stripe embedded in a transparent polymer film. When the polymer thickness is larger than the lateral extension of the plasmon, the stripe sustains a conventional long-range mode; in the opposite case, the mode is hybrid because its field distribution is confined by total internal reflection in the dielectric cladding. This hybridization increases the damping by absorption but dramatically reduces the radiation loss that occurs for curved geometries, such as bends. Our results are supported quantitatively by full-wave finite-element simulations. © 2008 The American Physical Society.

Full Text

Duke Authors

Cited Authors

  • Degiron, A; Cho, SY; Harrison, C; Jokerst, NM; Dellagiacoma, C; Martin, OJF; Smith, DR

Published Date

  • February 25, 2008

Published In

Volume / Issue

  • 77 / 2

Electronic International Standard Serial Number (EISSN)

  • 1094-1622

International Standard Serial Number (ISSN)

  • 1050-2947

Digital Object Identifier (DOI)

  • 10.1103/PhysRevA.77.021804

Citation Source

  • Scopus