High-resolution near-field Raman and fluorescence spectroscopy of single-walled carbon nanotubes
Abstract
Raman spectroscopy is a powerfull tool used extensively for the structural analysis of single-walled carbon nanotubes (SWNT). We present tip-enhanced Raman spectroscopy of SWNT based on the local field enhancement effect at a laser illuminated metal tip and demonstrate Raman imaging with 20 nm resolution. The technique opens up new insights into the structural properties of tubes on the nanoscale. Recently, SWNT were found to fluoresce at distinct energies that are determined by their structural parameters. Using local field enhancement simultaneous near-field fluorescence and Raman images can be acquired.
- Publication:
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APS March Meeting Abstracts
- Pub Date:
- March 2004
- Bibcode:
- 2004APS..MARP15001H