The Ag dielectric function in plasmonic metamaterials.
Ag permittivity (dielectric function) in coupled strips is different from bulk and has been studied for strips of various dimensions and surface roughness. Arrays of such paired strips exhibit the properties of metamagnetics. The surface roughness does not affect the Ag dielectric function, although it does increase the loss at the plasmon resonances of the coupled strips. The size effect in the imaginary part of the dielectric function is significant for both polarizations of light, parallel and perpendicular to the strips with relatively large A-parameter.
Birck Nanotechnology Center and School of Electrical and Computer Engineering, Purdue University, West Lafayette, IN 47907, USA. vdrachev@purdue.edu
Vladimir P
VP
Drachev
Uday K
UK
Chettiar
Alexander V
AV
Kildishev
Hsiao-Kuan
HK
Yuan
Wenshan
W
Cai
Vladimir M
VM
Shalaev
D003198:Computer Simulation; D008280:Magnetics; D008956:Models, Chemical; D055095:Optics and Photonics / Q000295:instrumentation*; D012834:Silver / Q000737:chemistry*; D020349:Surface Plasmon Resonance / Q000379:methods*; D013499:Surface Properties
D012834:Silver