Simple and Efficient Computational Method to Analyze Cylindrical Plasmonic Nanoantennas

الملخص EN

We present in this work a simple and efficient technique to analyze cylindrical plasmonic nanoantennas.

In this method, we take into account only longitudinal current inside cylindrical structures and use 1D integral equation for the electric field with a given surface impedance of metal.

The solution of this integral equation is obtained by the Method of Moments with sinusoidal basis functions.

Some examples of calculations of nanoantennas with different geometries and sources are presented and compared with the commercial software Comsol 3D simulations.

The results show that the proposed technique provides a good precision in the near-infrared and lower optical frequencies 100–400 THz.