Bi-anisotropy of multiple-layer fishnet negative-index metamaterials due to angled sidewalls.
Simulation results of near infrared (100- to 200-THz) fishnet-structure negative-index metamaterials (NIMs) with single and multiple functional layers exhibit bi-anisotropy - inhomogeneous asymmetry - due to the presence of a sidewall-angle. The influence of sidewall-angle resulting from realistic fabrication processes is investigated through the retrieved effective parameters by both a three-dimensional finite-difference time-domain (FDTD) method and a rigorous coupled wave analysis (RCWA).
Center for High Technology Materials and Department of Electrical & Computer Engineering, University of New Mexico, Albuquerque, NM 87106, USA.
Zahyun
Z
Ku
Jingyu
J
Zhang
S R J
SR
Brueck
D016880:Anisotropy; D003198:Computer Simulation; D008027:Light; D008420:Manufactured Materials; D008962:Models, Theoretical; D012031:Refractometry / Q000379:methods*; D012542:Scattering, Radiation