Resonance Raman spectra of carbon nanotubes by cross-polarized light

A. Jorio; M. A. Pimenta; A. G. Souza Filho; Ge G. Samsonidze; A. K. Swan; M. S. Ünlü; B. B. Goldberg; R. Saito; G. Dresselhaus; M. S. Dresselhaus

Resonance Raman spectra of carbon nanotubes by cross-polarized light

A. Jorio^*, M. A. Pimenta, A. G. Souza Filho, Ge G. Samsonidze, A. K. Swan, M. S. Ünlü, B. B. Goldberg, R. Saito, G. Dresselhaus, M. S. Dresselhaus

^*Corresponding author for this work

Physics and Astronomy

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

137 Scopus citations

Abstract

A resonance Raman spectra was observed at the single nanotube level from the same nanotube using different laser energies. The G′ band exhibits a (n,m) dependent frequency dispersion with E_laser, in agreement with the double resonance process in 1D systems. The clear observation of E₂ modes means that resonance with E_μ,μ±1 transitions needs to be taken into account when analyzing Raman and optical absorption spectra from isolated single wall carbon nanotubes (SWNTs). This result explains previous controversial polarization studies on aligned SWNT samples, solves open questions related to the resonance nature of the G-band Raman process in SWNTs, and opens up a new perspective for the ability of optical experiments to study electronic dispersion in SWNTs.

Original language	English (US)
Article number	107403
Pages (from-to)	107403/1-107403/4
Journal	Physical review letters
Volume	90
Issue number	10
State	Published - Mar 14 2003

ASJC Scopus subject areas

Physics and Astronomy(all)

Cite this

@article{c6cb9df744fb4157b9ec1d1f31a562dc,

title = "Resonance Raman spectra of carbon nanotubes by cross-polarized light",

abstract = "A resonance Raman spectra was observed at the single nanotube level from the same nanotube using different laser energies. The G′ band exhibits a (n,m) dependent frequency dispersion with Elaser, in agreement with the double resonance process in 1D systems. The clear observation of E2 modes means that resonance with Eμ,μ±1 transitions needs to be taken into account when analyzing Raman and optical absorption spectra from isolated single wall carbon nanotubes (SWNTs). This result explains previous controversial polarization studies on aligned SWNT samples, solves open questions related to the resonance nature of the G-band Raman process in SWNTs, and opens up a new perspective for the ability of optical experiments to study electronic dispersion in SWNTs.",

author = "A. Jorio and Pimenta, {M. A.} and {Souza Filho}, {A. G.} and Samsonidze, {Ge G.} and Swan, {A. K.} and {\"U}nl{\"u}, {M. S.} and Goldberg, {B. B.} and R. Saito and G. Dresselhaus and Dresselhaus, {M. S.}",

note = "Funding Information: The authors acknowledge helpful discussions with H. Chacham, M. S. C. Mazzoni, R. Capaz, and O. Dubay. This work is supported by CNPq/NSF joint collaboration program (NSF INT 00-00408 and CNPq 910120/99-4) and Instituto de Nanoci{\^e}ncias, Brazil. A. J. and A. G. S. F. acknowledge financial support from CNPq/CAPES-Brazil. The MIT authors acknowledge support under NSF DMR 01-16042. R. S. acknowledges a Grant-in-Aid (No. 13440091) from the Ministry of Education, Japan.",

year = "2003",

month = mar,

day = "14",

language = "English (US)",

volume = "90",

pages = "107403/1--107403/4",

journal = "Physical review letters",

issn = "0031-9007",

publisher = "American Physical Society",

number = "10",

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TY - JOUR

T1 - Resonance Raman spectra of carbon nanotubes by cross-polarized light

AU - Jorio, A.

AU - Pimenta, M. A.

AU - Souza Filho, A. G.

AU - Samsonidze, Ge G.

AU - Swan, A. K.

AU - Ünlü, M. S.

AU - Goldberg, B. B.

AU - Saito, R.

AU - Dresselhaus, G.

AU - Dresselhaus, M. S.

N1 - Funding Information: The authors acknowledge helpful discussions with H. Chacham, M. S. C. Mazzoni, R. Capaz, and O. Dubay. This work is supported by CNPq/NSF joint collaboration program (NSF INT 00-00408 and CNPq 910120/99-4) and Instituto de Nanociências, Brazil. A. J. and A. G. S. F. acknowledge financial support from CNPq/CAPES-Brazil. The MIT authors acknowledge support under NSF DMR 01-16042. R. S. acknowledges a Grant-in-Aid (No. 13440091) from the Ministry of Education, Japan.

PY - 2003/3/14

Y1 - 2003/3/14

N2 - A resonance Raman spectra was observed at the single nanotube level from the same nanotube using different laser energies. The G′ band exhibits a (n,m) dependent frequency dispersion with Elaser, in agreement with the double resonance process in 1D systems. The clear observation of E2 modes means that resonance with Eμ,μ±1 transitions needs to be taken into account when analyzing Raman and optical absorption spectra from isolated single wall carbon nanotubes (SWNTs). This result explains previous controversial polarization studies on aligned SWNT samples, solves open questions related to the resonance nature of the G-band Raman process in SWNTs, and opens up a new perspective for the ability of optical experiments to study electronic dispersion in SWNTs.

AB - A resonance Raman spectra was observed at the single nanotube level from the same nanotube using different laser energies. The G′ band exhibits a (n,m) dependent frequency dispersion with Elaser, in agreement with the double resonance process in 1D systems. The clear observation of E2 modes means that resonance with Eμ,μ±1 transitions needs to be taken into account when analyzing Raman and optical absorption spectra from isolated single wall carbon nanotubes (SWNTs). This result explains previous controversial polarization studies on aligned SWNT samples, solves open questions related to the resonance nature of the G-band Raman process in SWNTs, and opens up a new perspective for the ability of optical experiments to study electronic dispersion in SWNTs.

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M3 - Article

AN - SCOPUS:0037965936

SN - 0031-9007

VL - 90

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JO - Physical review letters

JF - Physical review letters

IS - 10

M1 - 107403

ER -

Resonance Raman spectra of carbon nanotubes by cross-polarized light

Abstract

ASJC Scopus subject areas

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