We provide a design of a metallic composite structure, which simultaneously shows dual-band negative permeability (DNP) in two optical ranges. Numerical simulation demonstrates that different shifting of the two magnetic resonances can be observed. This structure property allows the realization of a wide range of negative permeability covering near-infrared (NIR) and visible ranges simultaneously. The alterability of the two neighboring negative permeability would provide a way to realize an effective pass-band of a meta-material with negative permeability at optical frequencies. (C) 2008 Optical Society of America
Chinese Acad Sci, Inst Opt & Elect, State Key Lab Opt Technol Microfabricat, Beijing 100864, Peoples R China
Recommended Citation:
Hu, Chenggang,Liu, Liyuan,Chen, Xu'Nan,et al. Expanding the band of negative permeability of a composite structure with dual-band negative permeability[J]. OPTICS EXPRESS,2008,16(26):21544-21549.
