The effects of probe boundary conditions and propagation on nano‐Raman spectroscopy

Summary Raman spectra obtained in the near‐field, with collection of the Raman‐shifted light in reflection, show selective enhancement of vibrational modes. We show that the boundary conditions for an electric field near a metal surface affect propagation of the reflected signal and lead to this sel...

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Bibliographic Details
Published in:	Journal of microscopy (Oxford) Vol. 210; no. 3; pp. 252 - 254
Main Authors:	Hallen, H. D., Ayars, E. J., Jahncke, C. L.
Format:	Journal Article
Language:	English
Published:	Oxford, UK Blackwell Science Ltd 01-06-2003
Subjects:	Boundary conditions near a metal electric field enhancement gradient‐field Raman KTP light propagation in the near‐field nano‐Raman near‐field Raman spectroscopy near‐field scanning optical microscopy resolution
Online Access:	Get full text
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Summary:	Summary Raman spectra obtained in the near‐field, with collection of the Raman‐shifted light in reflection, show selective enhancement of vibrational modes. We show that the boundary conditions for an electric field near a metal surface affect propagation of the reflected signal and lead to this selection. The enhancement of certain Raman forbidden vibrations is explained by the presence of an electric field gradient near the metal‐apertured fibre probe.
Bibliography:	ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23
ISSN:	0022-2720 1365-2818
DOI:	10.1046/j.1365-2818.2003.01138.x