Journal
CHEMICAL PHYSICS LETTERS
Volume 376, Issue 1-2, Pages 174-180Publisher
ELSEVIER
DOI: 10.1016/S0009-2614(03)00883-2
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A tip-enhanced near-field Raman microscope has been applied to the detection of an individual single-wall carbon nanotube (SWNT). The detected information is a color (Raman-shift) image of molecular distribution without having to resort to staining non-fluorescent molecules of interest. In addition to nanometric-sensing and -imaging capability, local field-enhancement of the metallic tip has been utilized to detect a weak Raman scattering from nanometer region, which cannot be observed by conventional micro-Raman configuration (far-field Raman). The experimental results are shown with analysis of distinct vibration modes of both radial breathing mode and G-band. (C) 2003 Elsevier Science B.V. All rights reserved.
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