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."
Original language | English (US) |
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Pages (from-to) | 1083-1089 |
Number of pages | 7 |
Journal | IEEE Journal on Selected Topics in Quantum Electronics |
Volume | 12 |
Issue number | 6 |
DOIs | |
State | Published - Nov 2006 |
Funding
Manuscript received April 3, 2006; revised August 13, 2006. This work was supported in part by the National Science Foundation under Grant ECS 0210752 and in part by a Boston University SPRInG grant.
Keywords
- Carbon nanotube
- Excitons
- Raman scattering
ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics
- Electrical and Electronic Engineering