Tunable Resonant Raman Scattering from Singly Resonant Single Wall Carbon Nanotubes

Yin, Y.; Walsh, A. G.; Vamivakas, A. N.; Cronin, S.; Stolyarov, A. M.; Tinkham, M.; Bacsa, W.; Unlu, M. S.; Goldberg, B. B.; Swan, A. K.

Tunable Resonant Raman Scattering from Singly Resonant Single Wall Carbon Nanotubes

Authors

Description

We perform tunable resonant Raman scattering on 17 semiconducting and 7 metallic singly resonant single wall carbon nanotubes. The measured scattering cross-section as a function laser energy provides information about a tube's electronic structure, the lifetime of intermediate states involved in the scattering process and also energies of zone center optical phonons. Recording the scattered Raman signal as a function of tube location in the microscope focal plane allows us to construct two-dimensional spatial maps of singly resonant tubes. We also describe a spectral nanoscale artifact we have coined the "nano-slit effect".