Nanoscale chemical mapping through plasmonic tips on AFM-based cantilevers

M. Patrini, F. De Angelis, R. Proietti Zaccaria, M. Francardi, M. Lazzarino, L. Businaro, Enzo Di Fabrizio

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Scopus citations

Abstract

Noble metal tapered waveguides supporting plasmon-polariton modes are able to localize the optical fields at nanometer level producing a remarkable local electromagnetic field enhancement, which enables the realization of highsensitivity biochemical sensing devices. Here we report on the design, fabrication and experimental test of a novel photonic-plasmonic device that can be operated as an Atomic Force Microscopy tip and simultaneously for local probing of Raman scattering spectra. This result has made possible by recent approaches in nano-fabrication methods, which allow 3D nanostructuring of metals down to the nanoscale. The device demonstrates label-free detection capabilities on single inorganic nanoparticles and on monolayers of organic compounds in label-free conditions and native environments, allowing a topographic and chemical mapping of the materials with spatial resolution of a few nanometers.

Original languageEnglish (US)
Title of host publicationTheory and Applications in Computational Chemistry
Subtitle of host publicationThe First Decade of the Second Millennium, International Congress TACC-2012
EditorsJean-Marie Andre, Enrico Clementi, J. Andrew McCammon
PublisherAmerican Institute of Physics Inc.
Pages240-247
Number of pages8
ISBN (Electronic)9780735410572
DOIs
StatePublished - Jan 1 2012
EventInternational Congress in Theory and Applications in Computational Chemistry: The First Decade of the Second Millennium, TACC 2012 - Pavia, Italy
Duration: Sep 2 2012Sep 7 2012

Publication series

NameAIP Conference Proceedings
Volume1456
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Other

OtherInternational Congress in Theory and Applications in Computational Chemistry: The First Decade of the Second Millennium, TACC 2012
CountryItaly
CityPavia
Period09/2/1209/7/12

Keywords

  • Raman scattering
  • atomic force microscopy
  • molecular sensing
  • nanotechnology
  • plasmonics

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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