title: Coherent electronic and phononic oscillations in single-walled carbon nanotubes.
abstract: Free induction decay of the coherent electronic transition and coherent phonon oscillations of the radial breathing mode in single-walled carbon nanotubes are simultaneously observed via direct resonant excitation of the lowest E(11) optical transition in the near-infrared region from 0.939 to 1.1 eV. We show that coherent electronic oscillations corresponding to the detuning of the probe energy from resonance can be exploited for the chirality assignment of carbon nanotubes, together with the robust assignment of the coherent lattice vibrations resonantly excited by femtosecond pulses. Excitation spectra show a large number of pronounced peaks that map out chirality distributions in great detail.
authors.affiliation: Department of Chemistry, POSTECH, Pohang 790-784, Republic of Korea.
authors.forename: Intae
authors.initials: I
authors.lastname: Eom
authors.forename: Sohyun
authors.initials: S
authors.lastname: Park
authors.forename: Hae-Seon
authors.initials: HS
authors.lastname: Han
authors.forename: Ki-Ju
authors.initials: KJ
authors.lastname: Yee
authors.forename: Sung-Hoon
authors.initials: SH
authors.lastname: Baik
authors.forename: Do-Young
authors.initials: DY
authors.lastname: Jeong
authors.forename: Taiha
authors.initials: T
authors.lastname: Joo
authors.forename: Yong-Sik
authors.initials: YS
authors.lastname: Lim
mesh_terms: D004583:Electrons; D037742:Nanotubes, Carbon / Q000737:chemistry*; D009991:Oscillometry; D060739:Phonons
chemical_list: D037742:Nanotubes, Carbon