Resonant Coherent Phonon Generation in Single-Walled Carbon Nanotubes through Near-Band-Edge Excitation
SCIE
SCOPUS
- Title
- Resonant Coherent Phonon Generation in Single-Walled Carbon Nanotubes through Near-Band-Edge Excitation
- Authors
- Lim, YS; Ahn, JG; Kim, JH; Yee, KJ; Joo, T; Baik, SH; Haroz, EH; Booshehri, LG; Kono, J
- Date Issued
- 2010-06
- Publisher
- ACS
- Abstract
- We have observed large-amplitude coherent phonon oscillations of radial breathing modes (RBMs) in single-walled carbon nanotubes excited through the lowest-energy (E-11) interband transitions. In contrast to the previously studied coherent phonons excited through higher-energy (E-22) transitions, these RBMs show comparable intensities between (n-m) mod 3 = +1 and -1 nanotubes. We also find the novel observation of RBMs excited over an excitation range of similar to 300 meV above the E-11 transition, which we attribute to possible resonance with phonon sidebands of the lowest optical transition, arising from strong exciton-phonon coupling.
- Keywords
- single-walled carbon nanotubes; coherent phonons; pump-probe spectroscopy; phonon sidebands; photoluminescence; MODEL
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/25884
- DOI
- 10.1021/NN100055E
- ISSN
- 1936-0851
- Article Type
- Article
- Citation
- ACS NANO, vol. 4, no. 6, page. 3222 - 3226, 2010-06
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- There are no files associated with this item.
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