Radiation and Absorption Properties of Gold Nanodipoles in Transmitting Mode

Abstract

This article presents an analysis of radiation and absorption properties of cylindrical gold nanodipoles in the transmitting mode. The conventional antenna theory and the linear method of moments are used for theoretical analysis of these antennas in the near-infrared and lower optical frequencies (1002500 THz). Frequency dependence of radiation and absorption parameters such as input impedance, efficiency, radiation, and loss resistance is calculated for different dipole's lengths and radii. The presented results can be useful to design efficient nanodipoles and to perform the input impedance matching of these antennas with plasmonic optical transmission lines.

Wireless Optical Nanolinks with Yagi-Uda and Dipoles Plasmonic Nanoantennas

“…For this analysis, the values of the antennas parameters are those shown in Table 1, where with these values the main resonances are in the frequency range of 100-400 THz considered. The parameters of the isolated dipole are based on [23] and those of the elements of the Yagi-Uda antenna were chosen so that the reflecting element was larger than the dipole and the smaller dipole directors. In Table 1, a = a r = a dT = a d = a dR and d = d hr = d hd .…”