Asymmetric and symmetric coupling of surface-plasmon-polariton waves to planar interfaces with periodically patterned slanted columnar thin films of silver

Jhuma Dutta, S. Anantha Ramakrishna, Akhlesh Lakhtakia

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

We investigated the interaction of a periodically patterned columnar thin film (PP-CTF) of silver with light incident on it from a vacuous half space, as a function of the angle ψ between the plane of incidence and the morphologically significant plane of the PP-CTF. The chosen structure had previously been shown to be capable of showing asymmetric coupling of surface-plasmon-polariton (SPP) waves over a broad bandwidth in the visible regime with incident light when the plane of incidence coincides with the morphologically significant plane of the PP-CTF (ψ = 0°). We determined experimentally that coupling may be completely symmetric in some spectral regime, when the plane of incidence is orthogonal to the morphologically significant plane of the PP-CTF (ψ = 90°). Whereas asymmetric coupling occurs with quasilinear dispersion when ψ = 0°, completely symmetric coupling occurs with quasiparabolic dispersion.

Original languageEnglish (US)
Title of host publicationMetamaterials X
EditorsPeter Markos, Vladimir Kuzmiak, Tomasz Szoplik
PublisherSPIE
ISBN (Electronic)9781628416237
DOIs
StatePublished - Jan 1 2015
Event10th SPIE Conference on Metamaterials - Prague, Czech Republic
Duration: Apr 15 2015Apr 16 2015

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume9502
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Other

Other10th SPIE Conference on Metamaterials
CountryCzech Republic
CityPrague
Period4/15/154/16/15

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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  • Cite this

    Dutta, J., Ramakrishna, S. A., & Lakhtakia, A. (2015). Asymmetric and symmetric coupling of surface-plasmon-polariton waves to planar interfaces with periodically patterned slanted columnar thin films of silver. In P. Markos, V. Kuzmiak, & T. Szoplik (Eds.), Metamaterials X [95020R] (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 9502). SPIE. https://doi.org/10.1117/12.2179008