Retrieval of effective parameters for bianisotropic metamaterials with omega shaped metallic inclusions |
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| Authors: | Zhaofeng Li Koray Aydin Ekmel Ozbay |
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| Affiliation: | 1. Nanotechnology Research Center, Bilkent University, Bilkent, 06800 Ankara, Turkey;2. Department of Physics, Bilkent University, Bilkent, 06800 Ankara, Turkey;3. Department of Electrical and Electronics Engineering, Bilkent University, Bilkent, 06800 Ankara, Turkey |
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| Abstract: | Bianisotropic metamaterials including Ω-shaped metallic elements are investigated experimentally and theoretically. A passband is observed for a composite metamaterial (CMM) based on an Ω-medium below the plasmonic frequency of the corresponding closed CMM. The effective parameters (refractive index, impedances, permittivity, permeability, and magnetoelectric coupling coefficient) are retrieved for the Ω-medium and the CMM based on it. Our retrieval results show that the passband observed for the CMM is a band with positive refractive indices. Our retrieval results confirm the deductions of our previous reports. |
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