Open AccessVolumetric Method of Moments and Conceptual Multilevel Building Blocks for Nanotopologies
Author(s) -
X. Zheng,
V. K. Valev,
N. Verellen,
Y. Jeyaram,
A. V. Silhanek,
V. Metlushko,
M. Ameloot,
G. A. E. Vandenbosch,
V. V. Moshchalkov
Publication year - 2012
Publication title -
ieee photonics journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.725
H-Index - 73
eISSN - 1943-0655
pISSN - 1943-0647
DOI - 10.1109/jphot.2012.2185222
Subject(s) - engineered materials, dielectrics and plasmas , photonics and electrooptics
On the basis of the relationship between charge dimensionality and singular field behavior, it is proven that in a volumetric description of a volume current carrying topology, half rooftops of different binary hierarchical level are allowed without introducing numerical difficulties. This opens the possibility to use a very efficient multilevel hierarchical meshing scheme in a volumetric method-of-moments (V-MoM) algorithm. The new meshing scheme is validated by numerical calculations and experiments. It paves the way toward a much more efficient use of MoM in the description of arbitrarily shaped nanostructures at infrared and optical frequencies.