Implementation of the natural mode analysis for nanotopologies using a Volumetric Method of Moments (V-MoM) algorithm

Xuezhi Zheng, Ventsislav K. Valev, Niels Verellen, Vladimir Volskiy, Lars O. Herrmann, Pol Van Dorpe, Jeremy J. Baumberg, Guy A E Vandenbosch, V. V. Moschchalkov

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

Within the framework of a method-of-moments algorithm, the natural frequencies and natural modes of a scatterer/antenna can be found by looking for the complex frequencies where the determinant of the impedance matrix becomes zero. However, for nanotopologies, the value of this determinant can easily go beyond the resolution or representation limits available on present-day computers. In this work, we propose a substitute for the matrix determinant that avoids this problem altogether: the characteristic term. A robust numerical procedure for locating natural frequencies using this new target function is outlined. Then, the natural frequencies of three different nanostructures, namely, a gold and nickel nanopatch and a gold nanodimer, are calculated and validated by numerically and experimentally obtained scattering/extinction spectra.

Original languageEnglish
Article number6838978
JournalIEEE Photonics Journal
Volume6
Issue number4
DOIs
Publication statusPublished - 1 Jan 2014

Fingerprint Dive into the research topics of 'Implementation of the natural mode analysis for nanotopologies using a Volumetric Method of Moments (V-MoM) algorithm'. Together they form a unique fingerprint.

  • Cite this

    Zheng, X., Valev, V. K., Verellen, N., Volskiy, V., Herrmann, L. O., Van Dorpe, P., Baumberg, J. J., Vandenbosch, G. A. E., & Moschchalkov, V. V. (2014). Implementation of the natural mode analysis for nanotopologies using a Volumetric Method of Moments (V-MoM) algorithm. IEEE Photonics Journal, 6(4), [6838978]. https://doi.org/10.1109/JPHOT.2014.2331236