DocumentCode
1861345
Title
Some computational aspects of too sharp edges
Author
Wallén, Henrik ; Kataja, Juhani
Author_Institution
Dept. of Radio Sci. & Eng., Aalto Univ., Espoo, Finland
fYear
2011
fDate
10-13 Aug. 2011
Firstpage
70
Lastpage
74
Abstract
Ideally sharp edges can be computationally some-what difficult, but the model is theoretically reasonable except for certain ranges of negative material parameters. In the quasistatic limit, negative permittivity wedges appear to support unphysical edge modes with infinite energy, and this theoretical anomaly show up as nonsensical numerical results in both static and dynamic simulations.
Keywords
electromagnetic field theory; permittivity; shapes (structures); dynamic simulation; infinite energy; negative material parameter; nonsensical numerical result; quasistatic limit negative permittivity wedge; sharp edge computational aspect; static simulation; theoretical anomaly; unphysical edge mode; Computational modeling; Dielectrics; Electrostatics; Numerical models; Permittivity; Plasmons; Scattering;
fLanguage
English
Publisher
ieee
Conference_Titel
Computational Electromagnetics International Workshop (CEM), 2011
Conference_Location
Izmir
Print_ISBN
978-1-4577-1685-0
Type
conf
DOI
10.1109/CEM.2011.6047333
Filename
6047333
Link To Document