Nanopost plasmonic crystals

T. T. Truong, J. Maria, J. Yao, M. E. Stewart, T. W. Lee, S. K. Gray, R. G. Nuzzo, J. A. Rogers

Research output: Contribution to journalArticle

Abstract

We describe a class of plasmonic crystal that consists of square arrays of nanoposts formed by soft nanoimprint lithography. As sensors, these structure show somewhat higher bulk refractive index sensitivity for aqueous solutions in the visible wavelength range as compared to plasmonic crystals consisting of square arrays of nanowells with similar dimensions, with opposite trends for the case of surface bound layers in air. Three-dimensional finite-difference time-domain simulations quantitatively capture the key features and assist in the interpretation of these and related results.

Original languageEnglish (US)
Article number434011
JournalNanotechnology
Volume20
Issue number43
DOIs
StatePublished - Oct 12 2009

ASJC Scopus subject areas

  • Bioengineering
  • Chemistry(all)
  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering
  • Electrical and Electronic Engineering

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  • Cite this

    Truong, T. T., Maria, J., Yao, J., Stewart, M. E., Lee, T. W., Gray, S. K., Nuzzo, R. G., & Rogers, J. A. (2009). Nanopost plasmonic crystals. Nanotechnology, 20(43), [434011]. https://doi.org/10.1088/0957-4484/20/43/434011