Polarized resonant Raman study of isolated single-wall carbon nanotubes:: Symmetry selection rules, dipolar and multipolar antenna effects -: art. no. 121402

被引：128

作者：

Jorio, A ^{[1
]}

Souza, AG

Brar, VW

Swan, AK

Unlü, MS

Goldberg, BB

Righi, A

Hafner, JH

Lieber, CM

Saito, R

Dresselhaus, G

Dresselhaus, MS

机构：

[1] MIT, Dept Phys, Cambridge, MA 02139 USA

[2] Univ Fed Ceara, Dept Fis, BR-60455760 Fortaleza, Ceara, Brazil

[3] Boston Univ, Dept Elect & Comp Engn, Boston, MA 02215 USA

[4] Boston Univ, Dept Phys, Boston, MA 02215 USA

[5] Univ Fed Minas Gerais, Dept Fis, BR-30123970 Belo Horizonte, MG, Brazil

[6] Harvard Univ, Dept Chem, Cambridge, MA 02138 USA

[7] Univ Electrocommun, Dept Elect Engn, Tokyo 1828585, Japan

[8] MIT, Francis Bitter Magnet Lab, Cambridge, MA 02139 USA

[9] MIT, Dept Elect Engn & Comp Sci, Cambridge, MA 02139 USA

来源：

PHYSICAL REVIEW B | 2002年 / 65卷 / 12期

关键词：

D O I：

10.1103/PhysRevB.65.121402

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We studied the polarization dependence of the resonance Raman spectra for several different isolated single-wall carbon nanotubes (SWNTs). One isolated SWNT acts as a dipolar antenna, polarized along the tube axis. For light polarized parallel to the tube axis, the strong resonance-effect breaks the symmetry-selection rules, and symmetry-forbidden modes appear in the Raman spectrum. When the light is not polarized parallel to the tube axis, G-band mode symmetries can be identified. Unusual G-mode intensity behavior is observed when the Raman signal is obtained from more than one SWNT, suggesting a complex multipolar antenna pattern.

引用

页码：1 / 4

页数：4

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