Resonant Plasmonic and Vibrational Coupling in a Tailored Nanoantenna for Infrared Detection
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- 7 October 2008
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 101 (15), 157403
- https://doi.org/10.1103/physrevlett.101.157403
Abstract
A novel resonant mechanism involving the interference of a broadband plasmon with the narrowband vibration from molecules is presented. With the use of this concept, we demonstrate experimentally the enormous enhancement of the vibrational signals from less than one attomol of molecules on individual gold nanowires, tailored to act as plasmonic nanoantennas in the infrared. By detuning the resonance via a change in the antenna length, a Fano-type behavior of the spectral signal is observed, which is clearly supported by full electrodynamical calculations. This resonant mechanism can be a new paradigm for sensitive infrared identification of molecular groups.Keywords
This publication has 28 references indexed in Scilit:
- Plasmonic Nanoshell Arrays Combine Surface‐Enhanced Vibrational Spectroscopies on a Single SubstrateAngewandte Chemie, 2007
- Surface enhanced infrared absorption of octadecanethiol on wet-chemically prepared Au nanoparticle filmsApplied Physics Letters, 2006
- Surface‐Enhanced Vibrational SpectroscopyPublished by Wiley ,2006
- Surface-Enhanced Infrared SpectroscopyApplied Spectroscopy, 2004
- Attenuated total reflection surface-enhanced infrared absorption spectroscopy of carboxyl terminated self-assembled monolayers on gold.Applied Spectroscopy, 2003
- Surface-Enhanced Infrared Spectroscopy: A Comparison of Metal Island Films with Discrete and Nondiscrete Surface PlasmonsApplied Spectroscopy, 2000
- Single Molecule Detection Using Surface-Enhanced Raman Scattering (SERS)Physical Review Letters, 1997
- Probing Single Molecules and Single Nanoparticles by Surface-Enhanced Raman ScatteringScience, 1997
- Surface‐enhanced Raman scattering of adsorbatesJournal of Raman Spectroscopy, 1991
- Surface-enhanced spectroscopyReviews of Modern Physics, 1985