Coherent lattice vibrations in single-walled carbon nanotubes

Yong Sik Lim; Ki Ju Yee; Ji Hee Kim; Erik H. Hároz; Jonah Shaver; Junichiro Kono; Stephen K. Doorn; Robert H. Hauge; Richard E. Smalley

doi:10.1021/nl061599p

Coherent lattice vibrations in single-walled carbon nanotubes

Yong Sik Lim, Ki Ju Yee, Ji Hee Kim, Erik H. Hároz, Jonah Shaver, Junichiro Kono, Stephen K. Doorn, Robert H. Hauge, Richard E. Smalley

Research output: Contribution to journal › Article › peer-review

116 Scopus citations

Abstract

We have generated and detected coherent lattice vibrations in single-walled carbon nanotubes corresponding to the radial breathing mode (RBM) using ultrashort laser pulses. Because the band gap is a function of diameter, these RBM-induced diameter oscillations cause ultrafast band gap oscillations, thereby modulating the interband excitonic resonances at the phonon frequencies (3-9 THz). Excitation spectra show a large number of pronounced peaks, allowing the determination of the chiralities present in particular samples and relative population differences of particular chiralities between samples.

Original language	English (US)
Pages (from-to)	2696-2700
Number of pages	5
Journal	Nano letters
Volume	6
Issue number	12
DOIs	https://doi.org/10.1021/nl061599p
State	Published - Dec 2006
Externally published	Yes

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title = "Coherent lattice vibrations in single-walled carbon nanotubes",

abstract = "We have generated and detected coherent lattice vibrations in single-walled carbon nanotubes corresponding to the radial breathing mode (RBM) using ultrashort laser pulses. Because the band gap is a function of diameter, these RBM-induced diameter oscillations cause ultrafast band gap oscillations, thereby modulating the interband excitonic resonances at the phonon frequencies (3-9 THz). Excitation spectra show a large number of pronounced peaks, allowing the determination of the chiralities present in particular samples and relative population differences of particular chiralities between samples.",

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doi = "10.1021/nl061599p",

language = "English (US)",

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AU - Lim, Yong Sik

AU - Yee, Ki Ju

AU - Kim, Ji Hee

AU - Hároz, Erik H.

AU - Shaver, Jonah

AU - Kono, Junichiro

AU - Doorn, Stephen K.

AU - Hauge, Robert H.

AU - Smalley, Richard E.

PY - 2006/12

Y1 - 2006/12

N2 - We have generated and detected coherent lattice vibrations in single-walled carbon nanotubes corresponding to the radial breathing mode (RBM) using ultrashort laser pulses. Because the band gap is a function of diameter, these RBM-induced diameter oscillations cause ultrafast band gap oscillations, thereby modulating the interband excitonic resonances at the phonon frequencies (3-9 THz). Excitation spectra show a large number of pronounced peaks, allowing the determination of the chiralities present in particular samples and relative population differences of particular chiralities between samples.

AB - We have generated and detected coherent lattice vibrations in single-walled carbon nanotubes corresponding to the radial breathing mode (RBM) using ultrashort laser pulses. Because the band gap is a function of diameter, these RBM-induced diameter oscillations cause ultrafast band gap oscillations, thereby modulating the interband excitonic resonances at the phonon frequencies (3-9 THz). Excitation spectra show a large number of pronounced peaks, allowing the determination of the chiralities present in particular samples and relative population differences of particular chiralities between samples.

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JO - Nano letters

JF - Nano letters

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Coherent lattice vibrations in single-walled carbon nanotubes

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