Negative permeability and subwavelength focusing of quasi-periodic dendritic cell metamaterials.
We present the design for a hexagonal cell made of quasi-periodic dendritic arranged collections of plasmonic metallic wires that may exhibit a resonant magnetic collective response. When such quasi-periodic dendritic cells are etched on a host medium, they may provide metamaterials with negative effective permeability. We also show that a clear point image is observed, as expected, with our left-handed metamaterials (LHMs) lens composed of metallic dendritic cells and wire strips. These prominent characteristics of quasi-periodic dendritic cells potentially enable us to prepare infrared or visible domain LHMs by using a general chemical method.
Zhou
Xin
X
Department of Applied Physics, Northwestern Polytechnical University, Xi'an 710072 PR China.
Fu
Quan H
QH
Zhao
Jing
J
Yang
Yang
Y
Zhao
Xiao P
XP
D003198:Computer Simulation; D003461:Crystallography / Q000379:methods*; D007536:Isomerism; D008027:Light; D008956:Models, Chemical; D049329:Nanostructures / Q000737:chemistry*; D036103:Nanotechnology / Q000379:methods; D012031:Refractometry / Q000379:methods*; D012542:Scattering, Radiation; D020349:Surface Plasmon Resonance / Q000379:methods*