paper 141224114856

Abstract

A rigorous analysis of nanoantennas using surface integral equations and the mul- tilevel fast multipole algorithm (MLFMA) is presented. Plasmonic properties of materials at optical frequencies are considered by using the Lorentz-Drude models and employing surface formulations for penetrable objects. The electric and magnetic current combined-field integral equation is preferred for fast and accurate solutions, which are further accelerated by an MLFMA implementation that is modified for plasmonic structures. The developed simulation environment is used to investigate popular bowtie structures with different material properties and to analyze interactions between pairs of nanoantennas.

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Özgür Ergül

U. M. Gur

Bariscan Karaosmanoglu