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Updated: Jun 13, 2026

Resonance Raman Spectroscopy of Extreme Nanowires and Other 1D Systems
Published on: April 28, 2016
Resonant coherent phonon generation in single-walled carbon nanotubes through near-band-edge excitation
Yong-Sik Lim1, Jae-Geum Ahn, Ji-Hee Kim
1Department of Applied Physics, Konkuk University, Chungju, Chungbuk 380-701, Republic of Korea. yslim@kku.ac.kr
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 approximately 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.
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