Communication

Ultrasharp Optical-Fiber Nanoprobe Array for Raman Local-Enhancement Imaging†

  1. Valérie Guieu Dr.1,
  2. François Lagugné-Labarthet Prof.1,2,
  3. Laurent Servant Prof.1,
  4. David Talaga1,
  5. Neso Sojic Prof.1

Article first published online: 14 DEC 2007

DOI: 10.1002/smll.200700526

Issue

Small

Small

Volume 4, Issue 1, pages 96–99, January 18, 2008

Additional Information

How to Cite

Guieu, V., Lagugné-Labarthet, F., Servant, L., Talaga, D. and Sojic, N. (2008), Ultrasharp Optical-Fiber Nanoprobe Array for Raman Local-Enhancement Imaging. Small, 4: 96–99. doi: 10.1002/smll.200700526

Author Information

  1. 1

    Institut des Sciences Moléculaires, UMR 5255 CNRS, Université Bordeaux 1, 351 Cours de la Libération, 33405 Talence cedex, France, Fax: (+33) 054-000-3615

  2. 2

    Department of Chemistry, University of Western Ontario, London, On, N6A5B7, Canada, Fax: (+001) 519-661-302-2

  1. †

    The authors thank the CNRS (Chemistry department), the Région Aquitaine and the Agence Nationale pour la Recherche (Programme en Nanosciences et Nanotechnologies ANR-05-NANO-048) for financial support.

Publication History

  1. Issue published online: 11 JAN 2008
  2. Article first published online: 14 DEC 2007
  3. Manuscript Revised: 10 OCT 2007
  4. Manuscript Received: 11 JUL 2007

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Keywords:

  • microarrays;
  • nanotips;
  • optical fibers;
  • surface-enhanced Raman spectroscopy
Thumbnail image of graphical abstract

The preparation and optical properties of an hexagonal array of ultrasharp tips are demonstrated. The ensemble of nanoprobes exhibits a significant Raman enhancement factor (> 104) when the probe surface is functionalized with a monolayer. From Raman imaging measurements with benzenethiol as a reference molecule, the maximum enhancement effect is clearly localized at the apex of the sharp tips (see image).

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