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Proceedings Paper

One-dimensional characters of excitons in carbon nanotubes
Author(s): Seiji Uryu; Tsuneya Ando
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Paper Abstract

Recent theoretical studies on exciton absorption in carbon nanotubes in an effective-mass approximation are reviewed. It is clarified that one-dimensional character plays important roles in optical properties of carbon nanotubes. For semiconducting tubes, exciton effects for polarization perpendicular to the tube axis cause prominent peaks in optical absorption spectra in spite of the depolarization effect. Calculated excited exciton energies for parallel polarization well reproduce measured energies for one- and two-photon absorption. Excitons can also exist in metallic carbon nanotubes.

Paper Details

Date Published: 22 January 2010
PDF: 12 pages
Proc. SPIE 7608, Quantum Sensing and Nanophotonic Devices VII, 76081J (22 January 2010); doi: 10.1117/12.846258
Show Author Affiliations
Seiji Uryu, Iwate Univ. (Japan)
Tsuneya Ando, Tokyo Institute of Technology (Japan)

Published in SPIE Proceedings Vol. 7608:
Quantum Sensing and Nanophotonic Devices VII
Manijeh Razeghi; Rengarajan Sudharsanan; Gail J. Brown, Editor(s)

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