Tailoring the parameters of nanohole arrays in gold films for sensing applications

George C. Schatz, Jeffrey M. McMahon, Stephen K. Gray

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

9 Citations (Scopus)

Abstract

Subwavelength hole arrays in metal films have the potential to exhibit narrow and high refractive index (RI) sensitive transmission features. We have previously demonstrated that such features can arise from the coupling between Wood anomalies (WAs) and surface Plasmon polaritons (SPPs) on opposite sides of the metal film, the "WA-SPP" effect. Rigorous coupled-wave analysis (RCWA) calculations on a 2D model, which are shown to give WA-SPP features very similar to that of 3D Finite-Difference Time-Domain (FDTD) calculations, are performed to determine how system parameters influence the strength of the WA-SPP effect. Herein we show that the optimum values for the film thickness and hole diameter are 45 and 175 nm, respectively.

Original languageEnglish
Title of host publicationPlasmonics
Subtitle of host publicationMetallic Nanostructures and Their Optical Properties V
DOIs
Publication statusPublished - Dec 1 2007
EventPlasmonics: Metallic Nanostructures and Their Optical Properties V - San Diego, CA, United States
Duration: Aug 26 2007Aug 29 2007

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume6641
ISSN (Print)0277-786X

Other

OtherPlasmonics: Metallic Nanostructures and Their Optical Properties V
CountryUnited States
CitySan Diego, CA
Period8/26/078/29/07

Keywords

  • Extraordinary optical transmission
  • Periodic hole arrays
  • Surface plasmons
  • Wood anomalies

ASJC Scopus subject areas

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

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  • Cite this

    Schatz, G. C., McMahon, J. M., & Gray, S. K. (2007). Tailoring the parameters of nanohole arrays in gold films for sensing applications. In Plasmonics: Metallic Nanostructures and Their Optical Properties V [664103] (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 6641). https://doi.org/10.1117/12.731368