Polarised Raman spectroscopy on a single class of single-wall nanotubes bynano surface-enhanced scattering

We report on the opportunity of performing polarised Raman spectroscopy on nanotubes by using surface-enhanced Raman scattering (SERS) mechanisms at t he scale of a single hot site. In conjunction with the opportunity of selec ting a single class of single wall nanotubes (SWNTs), it opens the way to f ine spectroscopic studies of carbon nanotubes, Results obtained on a single class of nanotubes demonstrate first that polarised Raman spectroscopy is possible when a single hot site of a SERS substrate is selected and second that in this situation, unambiguous assignment of the modes is possible. (C ) 2000 Elsevier Science B.V. All rights reserved.