Geometry-function relationship in meta-foils

H. O. Moser; L. K. Jian; H. S. Chen; S. M. P. Kalaiselvi; S. Virasawmy; X. X. Cheng; A. Banas; K. Banas; S. P. Heussler; M. Bahou; B.-I. Wu; Wei Hua; Zhu Yi

doi:10.1117/12.855094

29 April 2010 Geometry-function relationship in meta-foils

H. O. Moser, L. K. Jian, H. S. Chen, S. M. P. Kalaiselvi, S. Virasawmy, X. X. Cheng, A. Banas, K. Banas, S. P. Heussler, M. Bahou, B.-I. Wu, Wei Hua, Zhu Yi

Author Affiliations +

Proceedings Volume 7711, Metamaterials V; 771119 (2010) https://doi.org/10.1117/12.855094
Event: SPIE Photonics Europe, 2010, Brussels, Belgium

Abstract

Meta-foils are all-metal free-standing electromagnetic metamaterials based on interconnected S-string architecture. They provide a versatile applications' platform. Lacking any substrate or embedding matrix, they feature arrays of parallel upright S-strings with each string longitudinally shifted by half an S compared to its neighbour to form capacitance-inductance loops. Geometric parameters include length a, width b, thickness t, and height h of an S, the gap between adjacent S-strings d, and the periodicity p of the interconnecting lines. Equidistant strings at p=1 form a 1SE meta-foil. Grouped in pairs of gap d, exhibiting a gap d_p between pairs, they are named 2SP. Geometric parameters a, b, t, h, d, d_p, pS(E or P) and materials' properties like electric conductivity, Young's modulus, thermal expansion coefficient, and heat capacity determine the electromagnetic, mechanical, and thermal properties of meta-foils including the spectral dependence of resonance frequencies, refractive index, transmission, reflection, and bending. We show how the frequency and transmission of left-handed pass-bands depend on a, p, and d_p, the pSP geometry exhibiting higher resonance frequency and transmission. Equivalent circuit considerations serve to explain physical reasons. We also demonstrate mechanical behavior versus p and d_p justifying the design of a cylindrical hyperlens depending on bent meta-foils.

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H. O. Moser, L. K. Jian, H. S. Chen, S. M. P. Kalaiselvi, S. Virasawmy, X. X. Cheng, A. Banas, K. Banas, S. P. Heussler, M. Bahou, B.-I. Wu, Wei Hua, and Zhu Yi "Geometry-function relationship in meta-foils", Proc. SPIE 7711, Metamaterials V, 771119 (29 April 2010); https://doi.org/10.1117/12.855094

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