Nanoantennas for surface enhanced infrared spectroscopy: Effects of interaction and higher order resonant excitations

Autori

  • P. Albella Material Physics Center and DIPC
  • F. Neubrech Kirchhoff-Institute for Physics
  • D. Weber Kirchhoff-Institute for Physics
  • G. Han World Premier International (WPI) Research Center for Materials Nanoarchitectonics (MANA) National Institute for Materials Science (NIMS)
  • T. Nagao World Premier International (WPI) Research Center for Materials Nanoarchitectonics (MANA) National Institute for Materials Science (NIMS)
  • A. Pucci Kirchhoff-Institute for Physics
  • J. Aizpurua Material Physics Center and DIPC

DOI:

https://doi.org/10.1478/C1V89S1P016

Parole chiave:

Optics, Nanophotonics, spectroscopy, nanoantennas,

Abstract

The sensitivity in surface enhanced infrared spectroscopy (SEIRS) strongly depends on where the resonant excitation is spectrally located compared to the molecular vibration that is to be enhanced. In this contribution, we study the effect of coupling in the electromagnetic properties of 2D gold nanorod arrays in the IR. We also study the SEIRS activity of higher order resonant excitations in long nanoantennas to identify polaritonic signals of a supporting SiO2 layer with nanometer thickness (3 nm) on a silicon substrate.

Pubblicato

2011-09-15

Fascicolo

Sezione

Conference Papers