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Using reflection and transmission coefficients to retrieve surface parameters for an anisotropic metascreen: With a discussion on conversion between TE and TM polarizations

Published

Author(s)

Christopher L. Holloway, Edward Kuester

Abstract

In recent work we derived the generalized sheet transition conditions (GSTCs) for electromagnetic fields at the surface of a metascreen (a metasurface with a ``fishnet'' structure, i.e., an periodic array of arbitrary spaced apertures in an relatively impenetrable surface). The effective electric and magnetic surface parameters (i.e., the effective electrical and magnetic surface susceptibilities and surface porosities) that appear explicitly in the GSTCs are uniquely defined, and as such serve as the physical quantities that most appropriately characterize the metascreen. These surface parameters are related to the geometry of the apertures that constitute the metascreen, and as such can exhibit anisotropic properties. These anisotropic properties can results in the conversion between TE and TM modes when a plane-wave is incident onto a metasceen. Here, we use these GSTCs and presented the plane-wave reflection and transmission coefficients of an anisotropic metascreen, where we illustrate the coupling between TE and TM modes.
Citation
Journal of Applied Physics

Keywords

boundary conditions, generalized sheet transition conditions (GSTC), interface conditions, metafilms, metamaterials, metascreens, metasurfaces, surface susceptibilities, surface porosities, retrieval approach

Citation

Holloway, C. and Kuester, E. (2019), Using reflection and transmission coefficients to retrieve surface parameters for an anisotropic metascreen: With a discussion on conversion between TE and TM polarizations, Journal of Applied Physics, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=924503 (Accessed April 24, 2024)
Created February 12, 2019, Updated April 12, 2019