Second-Order Resonant Raman Spectra of Single-walled Carbon NanotubesM.S. Dresselhaus and G. Dresselhaus
An analysis of the second-order resonant Raman spectra of single-walled carbon nanotubes using different laser energies in the range 1.58-2.71 eV is presented. Major emphasis is given to the overtones and combination modes associated with the two dominant features of the first-order spectra, the radial breathing mode and the tangential mode. Both of these modes, as well as their second-order counterparts, are associated with resonant enhancement phenomena arising from electron-phonon coupling to the unique one-dimensional density of electronic states for the single-wall carbon nanotubes.
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Last modification: 1999.07.15 (Thursday) 11:34:05 EDT