One-dimensional characters of excitons in carbon nanotubes

Seiji Uryu; Tsuneya Ando

doi:10.1117/12.846258

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22 January 2010 One-dimensional characters of excitons in carbon nanotubes

Seiji Uryu, Tsuneya Ando

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Proceedings Volume 7608, Quantum Sensing and Nanophotonic Devices VII; 76081J (2010) https://doi.org/10.1117/12.846258
Event: SPIE OPTO, 2010, San Francisco, California, United States

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.

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Seiji Uryu and Tsuneya Ando "One-dimensional characters of excitons in carbon nanotubes", Proc. SPIE 7608, Quantum Sensing and Nanophotonic Devices VII, 76081J (22 January 2010); https://doi.org/10.1117/12.846258

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