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Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering SciencesVolume 362, Issue 1817, 15 April 2004, Pages 807-819

Tip-enhanced optical spectroscopy(Article)

  • Institute of Optics, University of Rochester, Rochester, NY 14627, United States

Abstract

Spectroscopic methods with high spatial resolution are essential for understanding the physical and chemical properties of nanoscale materials including biological proteins, quantum structures and nanocomposite materials. In this paper, we describe microscopic techniques which rely on the enhanced electric field near a sharp, laser-irradiated metal tip. This confined light-source can be used for the excitation of various optical interactions such as two-photon excited fluorescence or Raman scattering. We study the properties of the enhanced fields and demonstrate fluorescence and Raman imaging with sub-20 nm resolution.

Author keywords

Fluorescence imagingNear-field opticsRaman spectroscopySecond-harmonic generation
  • ISSN: 1364503X
  • Source Type: Journal
  • Original language: English
  • DOI: 10.1098/rsta.2003.1348
  • PubMed ID: 15306495
  • Document Type: Article
  • Publisher: Royal Society

  Hartschuh, A.; Institute of Optics, University of Rochester, United States;
© Copyright 2017 Elsevier B.V., All rights reserved.

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