Polarization dependence of the optical absorption of single-walled carbon nanotubes.


Anisotropic optical absorption properties of single-walled carbon nanotubes (SWNTs) are determined from a vertically aligned SWNT film for 0.5-6 eV. Absorption peaks at 4.5 and 5.25 eV are found to exhibit remarkable polarization dependence and have relevance to optical properties of graphite. A method for determining a nematic order parameter for an aligned SWNT film based on the collinear absorption peak at 4.5 eV is presented, followed by the determination of the optical absorption cross section.

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@article{Murakami2005PolarizationDO, title={Polarization dependence of the optical absorption of single-walled carbon nanotubes.}, author={Yoichi Murakami and Erik Einarsson and Tadao Edamura and Shigeo Maruyama}, journal={Physical review letters}, year={2005}, volume={94 8}, pages={087402} }