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Terahertz Excitonic Response of Isolated Single-Walled Carbon Nanotubes

Abstract:

We have investigated the ultrafast far-infrared transmission of isolated single-walled carbon nanotubes using optical-pump THz-probe spectroscopy. The THz dielectric response is dominated by excitons with an initial, rapid decay due to Auger recombination followed by a slow decay of isolated single excitons. Frequencydependent analysis of the photomduced dielectric function suggest an internal excitonic excitation at ∼11 meV with further low-frequency (∼0.6 and 1.4 THz) absorption features at...

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Publication status:
Published

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Publisher copy:
10.1021/jp907195t

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Institution:
University of Oxford
Department:
Oxford, MPLS, Physics, Condensed Matter Physics
Role:
Author
More by this author
Institution:
University of Oxford
Department:
Oxford, MPLS, Physics, Condensed Matter Physics
Role:
Author
More by this author
Institution:
University of Oxford
Department:
Oxford, MPLS, Physics, Condensed Matter Physics
Role:
Author
Journal:
JOURNAL OF PHYSICAL CHEMISTRY C
Volume:
113
Issue:
42
Pages:
18106-18109
Publication date:
2009-10-22
DOI:
EISSN:
1932-7455
ISSN:
1932-7447
URN:
uuid:46cac025-e6b2-48c5-9c3d-2512bd2cfd3e
Source identifiers:
26959
Local pid:
pubs:26959
Language:
English

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