Optical Phonon Dephasing in Single-Walled Carbon Nanotubes Probed via Impulsive Stimulated Raman Scattering

Details Optical Phonon Dephasing in Single-Walled Carbon Nanotubes Probed via Impulsive Stimulated Raman Scattering Optical Phonon Dephasing in Single-Walled Carbon Nanotubes Probed via Impulsive Stimulated Raman Scattering

2011-06-15

arxiv.org/abs/1106.2858v1

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

4 pages, 4 figures

Scientific paper

We have studied the coherent dynamics of optical phonons in single-walled carbon nanotubes through impulsive stimulated Stokes and anti-Stokes Raman scattering. The probe energy dependence of phonon amplitude as well as preferential occurrence between Stokes and anti-Stokes components in response to chirped-pulse excitation are well explained within our model. The temperature dependence of the observed dephasing rate clearly exhibits a thermally-activated component, with an activation energy that coincides with the frequency of the radial breathing mode (RBM). This fact provides a clear picture for the dephasing of optical phonons by random frequency modulation via interaction with the RBM through anharmonicity.

Affiliated with

Also associated with

No associations

Rating

Optical Phonon Dephasing in Single-Walled Carbon Nanotubes Probed via Impulsive Stimulated Raman Scattering does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Optical Phonon Dephasing in Single-Walled Carbon Nanotubes Probed via Impulsive Stimulated Raman Scattering, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optical Phonon Dephasing in Single-Walled Carbon Nanotubes Probed via Impulsive Stimulated Raman Scattering will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-657476