Title :
FE modeling of plasmonic nanoantennas with realistic 3D roughness and distortion
Author :
Borneman, Joshua ; Kildishev, Alexander ; Chen, Kuo-Ping ; Ni, Xingjie ; Drachev, Vladimir
Author_Institution :
Birck Nanotechnol. Center, Purdue Univ., West Lafayette, IN, USA
Abstract :
Metal nanoantenna arrays are typically designed and simulated using an ideal (smooth) geometry, and degraded experimental performance due to surface roughness, interior defects, and other effects are taken into account through a single value, a material `loss factor´; although a 2-D roughness has been introduced in simulations for plasmonic metamagnetics. Here, we aim to treat roughness independently from other types of loss by introducing a controlled roughened geometry into the FE model. The effect of various geometric defects on the resulting electromagnetic model, specifically, transmission and reflection spectra, will be presented.
Keywords :
antenna arrays; antennas in plasma; finite element analysis; metamagnetism; nanostructured materials; plasmonics; surface electromagnetic waves; surface roughness; 3D distortion; FE modeling; controlled roughened geometry; electromagnetic model; geometric defects; interior defects; material loss factor´; metal nanoantenna arrays; plasmonic metamagnetics; plasmonic nanoantennas; realistic 3D roughness; reflection spectra; smooth geometry; surface roughness; transmission spectra; Degradation; Geometry; Inorganic materials; Iron; Performance loss; Plasmons; Rough surfaces; Solid modeling; Surface roughness; Surface treatment;
Conference_Titel :
Electromagnetic Field Computation (CEFC), 2010 14th Biennial IEEE Conference on
Conference_Location :
Chicago, IL
Print_ISBN :
978-1-4244-7059-4
DOI :
10.1109/CEFC.2010.5481439