title: Bi-layer cross chiral structure with strong optical activity and negative refractive index.
abstract: The properties of periodic pairs of mutually twisted metallic (silver) crosses separated by dielectric layer have been investigated by numerical simulation. The results show that the exceptionally strong polarization rotation and circular dichroism, negative permeability and negative refractive index are found at the infrared communication wavelength (1.55 microm).
authors: Institute of Optical Fiber Communication and Network Technology, Ningbo University, Ningbo, Zhejiang 315211, China. dongjianfeng@nbu.edu.cn
authors: Jianfeng
authors: J
authors: Dong
authors: Jiangfeng
authors: J
authors: Zhou
authors: Thomas
authors: T
authors: Koschny
authors: Costas
authors: C
authors: Soukoulis
mesh_terms: D003198:Computer Simulation; D008027:Light; D008422:Materials Testing; D008956:Models, Chemical; D012031:Refractometry; D012542:Scattering, Radiation; D012834:Silver / Q000737:chemistry*
chemical_list: D012834:Silver