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Proceedings Paper

Femtosecond laser-assisted photobleaching of single-wall carbon nanotubes
Author(s): Satoru Shoji; Hideaki Kobayashi; Thomas Rodgers; Satoshi Kawata
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Paper Abstract

We present femtosecond laser induced photobleaching of individually isolated single-wall carbon nanotubes. Monodispersed single-wall carbon nanotubes fixed in aqueous gel were exposed under tightly focused femtosecond laser light. We measured photoluminescence spectra of single-wall carbon nanotubes before/after the laser irradiation. Because of unique excitonic band structures of single-wall carbon nanotubes, we clearly observed strong selectivity in the chirality and the orientation of carbon nanotubes depending on the wavelength and polarization of laser light. We also observed the difference from the case of continuous wave laser irradiation in the chirality selectivity and the efficiency of photobleaching.

Paper Details

Date Published: 16 February 2012
PDF: 7 pages
Proc. SPIE 8245, Synthesis and Photonics of Nanoscale Materials IX, 82450C (16 February 2012); doi: 10.1117/12.908090
Show Author Affiliations
Satoru Shoji, Osaka Univ. (Japan)
Hideaki Kobayashi, Osaka Univ. (Japan)
Thomas Rodgers, Osaka Univ. (Japan)
Satoshi Kawata, Osaka Univ. (Japan)
RIKEN (Japan)
Japan Corp. of Science and Technology (Japan)

Published in SPIE Proceedings Vol. 8245:
Synthesis and Photonics of Nanoscale Materials IX
Frank Träger; Jan J. Dubowski; David B. Geohegan, Editor(s)

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