Phys. Rev. Lett. Volume 78, Page 4289 1997

Effective Medium Theory of the Optical Properties of Aligned Carbon Nanotubes

F.J. García-Vidal, J.M. Pitarke and J.B. Pendry


We present an effective medium theory in order to analyze the reported optical properties of aligned carbon nanotube films [W. A. de Heer et al., Science 268, 845 (1995)]. This methodology is based on photonic band structure calculations and allows treatment of complex media consisting of particles that interact strongly. We also develop a simple Maxwell-Garnett type approach for studying this system. In comparing the results of both mean field theories, we demonstrate that the inclusion of the full electromagnetic coupling between the nanotubes, as our numerical scheme does, is necessary for a complete explanation of the experimental data.

This paper is available from the Condensed Matter e-Print Archive, as a PDF file or as a PostScript file.

Valid HTML 4.0! last updated Tue Nov 24 12:03 gmt 1998 by RAE