Coherent Lattice Vibrations in Carbon Nanotubes

Abstract

We have generated and detected the radial-breathing mode of coherent lattice vibrations in single-walled carbon nanotubes using ultrashort laser pulses. Because the band gap is a function of diameter, these diameter oscillations cause ultrafast band gap oscillations, modulating interband excitonic resonances at the phonon frequencies (3-9 THz). Excitation spectra show a large number of pronounced peaks, mapping out chirality distributions in great detail.

4 pages, 4 figures

References in corpus (7)

• Exciton binding energies in carbon nanotubes from two-photon photoluminescence
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• Chirality distribution and transition energies of carbon nanotubes
• Exciton-phonon effects in carbon nanotube optical absorption
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• Long-lived optical phonons in ZnO studied with impulsive stimulated Raman scattering
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Cited by in corpus (16)

• Temperature dependence of the anharmonic decay of optical phonons in carbon nanotubes and graphite
• Chirality-Selective Excitation of Coherent Phonons in Carbon Nanotubes
• Resonant Coherent Phonon Spectroscopy of Single-Walled Carbon Nanotubes
• Coherent Phonons in Carbon Nanotubes and Graphene
• High energetic excitons in carbon nanotubes directly probe charge-carriers
• Ultrafast vibrational motion of carbon nanotubes in different pH environments
• Polarization dependence of coherent phonon generation and detection in highly-aligned single-walled carbon nanotubes
• Coherent radial breathing like phonons in graphene nanoribbons
• Dephasing of G-Band Phonons in Single-Wall Carbon Nanotubes Probed via Impulsive Stimulated Raman Scattering
• Origin of coherent G band phonon spectra in single wall carbon nanotubes
• Excitonic effects on coherent phonon dynamics in single wall carbon nanotubes
• Vibrational Energy Transfer from Photo-Excited Carbon Nanotubes to Proteins Observed by Coherent Phonon Spectroscopy
• Selective coherent phonon mode generation in single wall carbon nanotubes
• Coherent monochromatic phonons in highly-purified semiconducting single-wall carbon nanotubes
• Validity of approximations applied in calculations of single-wall metallic carbon nanotube current-voltage characteristics
• Optical and Terahertz Response of Carbon Nanostructures