Article,

Optical absorption of graphite and single-wall carbon nanotubes

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APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING, 78 (8): 1099-1105 (2004)
DOI: 10.1007/s00339-003-2459-z

Abstract

A review of the electronic dipole transitions in graphite and single-wall carbon nanotubes is presented. Because of its singular electronic structure, the optical absorption matrix element as a function of wave vector has a node in the two-dimensional Brillouin zone of graphite, which depends linearly on the optical polarization direction. In the case of the single-wall carbon nanotubes, the dipole selection rule and the van Hove singularity in the joint density of states will give a characteristic behavior, which is observed by luminescence and resonance Raman spectroscopy.

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