Title :
Tunable Resonant Raman Scattering From Singly Resonant Single Wall Carbon Nanotubes
Author :
Yin, Y. ; Walsh, A.G. ; Vamivakas, A.N. ; Cronin, S.B. ; Stolyarov, A.M. ; Tinkham, M. ; Bacsa, W. ; Unlu, M.S. ; Goldberg, B.B. ; Swan, A.K.
Author_Institution :
Boston Univ., MA
Abstract :
We perform tunable resonant Raman scattering on 17 semiconducting and seven metallic singly resonant single wall carbon nanotubes. The measured scattering cross section as a function of laser energy provides information about a tube\´s electronic structure, the lifetime of intermediate states involved in the scattering process, and also the 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 nano-scale artifact, which we have termed as the "nano-slit effect."
Keywords :
Raman spectra; carbon nanotubes; optical tuning; C; microscope focal plane; nanoslit effect; single wall carbon nanotubes; spectral nanoscale artifact; tunable resonant Raman scattering; zone center optical phonons; Carbon nanotubes; Energy measurement; Optical recording; Optical scattering; Phonons; Raman scattering; Resonance; Semiconductivity; Semiconductor lasers; Tunable circuits and devices; Carbon nanotube; Raman scattering; excitons;
Journal_Title :
Selected Topics in Quantum Electronics, IEEE Journal of
DOI :
10.1109/JSTQE.2006.883694