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

被引：224

作者：

Murakami, Y ^{[1
]}

Einarsson, E ^{[1
]}

Edamura, T ^{[1
]}

Maruyama, S ^{[1
]}

机构：

[1] Univ Tokyo, Dept Engn Mech, Bunkyo Ku, Tokyo 1138656, Japan

来源：

PHYSICAL REVIEW LETTERS | 2005年 / 94卷 / 08期

关键词：

D O I：

10.1103/PhysRevLett.94.087402

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

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.

引用

页数：4

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