DocumentCode :
59594
Title :
Implementation of the Natural Mode Analysis for Nanotopologies Using a Volumetric Method of Moments (V-MoM) Algorithm
Author :
Xuezhi Zheng ; Valev, Ventsislav K. ; Verellen, Niels ; Volskiy, V. ; Herrmann, Lars O. ; Van Dorpe, Pol ; Baumberg, Jeremy J. ; Vandenbosch, Guy A. E. ; Moschchalkov, V.V.
Author_Institution :
Dept. of Electr. Eng. (ESAT-TELEMIC), KU Leuven, Leuven, Belgium
Volume :
6
Issue :
4
fYear :
2014
fDate :
Aug. 2014
Firstpage :
1
Lastpage :
13
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.
Keywords :
method of moments; nanophotonics; nanostructured materials; Au; Ni; extinction spectra; gold nanodimer; gold nanopatch; matrix determinant; nanotopologies; natural frequencies; natural mode analysis; nickel nanopatch; scattering spectra; volumetric method of moments algorithm; Algorithm design and analysis; Impedance; Matrix decomposition; Method of moments; Plasmons; Vectors; Plasmonics; modeling; nano-antennas; natural frequencies and natural modes; volumetric method of moments (V-MoM);
fLanguage :
English
Journal_Title :
Photonics Journal, IEEE
Publisher :
ieee
ISSN :
1943-0655
Type :
jour
DOI :
10.1109/JPHOT.2014.2331236
Filename :
6838978
Link To Document :
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