Coherent phonon dynamics in single-walled carbon nanotubes studied by time-frequency two-dimensional coherent anti-stokes Raman scattering spectroscopy.
basic_science · Level V
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- Record sourced from PubMed, PMID 19278210.
- Also identified by DOI 10.1021/nl803027c.
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Abstract
Coherent phonon dynamics in single-walled carbon nanotubes were studied using broadband coherent anti-Stokes Raman scattering microscopy in time-frequency domain. Zone-center G-phonons were coherently created by optical excitation with the relaxation time of 1.1 +/- 0.1 ps, while zone-boundary D-phonons showed incoherent behavior, indicating electron-phonon, electron-defect, and phonon-phonon interactions in semiconducting nanotubes.