Bi-anisotropy of multiple-layer fishnet negative-index metamaterials due to angled sidewalls.

作者信息

Ku Zahyun, Zhang Jingyu, Brueck S R J

机构信息

Center for High Technology Materials and Department of Electrical & Computer Engineering, University of New Mexico, Albuquerque, NM 87106, USA.

出版信息

Opt Express. 2009 Apr 13;17(8):6782-9. doi: 10.1364/oe.17.006782.

DOI:10.1364/oe.17.006782

PMID:19365507

Abstract

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).

摘要