Oscillatory behaviour of the photoselective resonance scattering of single wall carbon nanotubes

The radial breathing mode around 190 cm -1 was investigated for excitation with 30 different laser lines. It exhibits an oscillatory behaviour with respect to excitation energy. This oscillations could be traced back to the periodicity of the van Hove singularities. Using the first and the second spectral moments parameters characterizing a diameter distribution can be evaluated.