Antenna Effects in Arrays of Aligned Carbon Nanotubes

We have demonstrated earlier [1], that carbon nanotubes respond to light as radio antennas. Specifically, we have demonstrated the polarization and length antenna effects. Here we show yet another, a more subtle antenna effect: the multi-lobe reflection pattern with the specular enhancement. We demonstrate this effect in a random array of aligned, widely spaced carbon nanotubes. We show via calculation and computer simulations that these effects are results of the conventional antenna theory. \newline \newline [1] Y. Wang, K. Kempa, B. Kimball, J. B. Carlson, G. Benham, W. Z. Li, T. Kempa, J. Rybczynski, A. Herczynski, and Z. F. Ren, Applied Physics Letters \textbf{85}, 2607 (2004).