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Quadrupolar susceptibility modeling of substrated metasurfaces with application to the generalized Brewster effect
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DOI：10.1364/OE.488529.png)
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Abstract
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We derive generalized sheet transition conditions (GSTCs) including dipoles and quadrupoles, using generalized functions (distributions). This derivation verifies that the GSTCs are valid for metasurfaces in non-homogeneous environments, such as for practical metasurfaces fabricated on a substrate. The inclusion of quadrupoles and modeling of spatial dispersion provides additional hyper-susceptibility components which serve as degrees of freedom for wave transformations. We leverage them to demonstrate a generalized Brewster effect with multiple angles of incidence at which reflection is suppressed, along with an anti-Brewster effect where transmission is suppressed.& COPY; 2023 Optica Publishing Group under the terms of the Optica Open Access Publishing Agreement
Keywords:
TRANSITION CONDITIONS
BOUNDARY-CONDITIONS
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3.3
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6.1W
Citations:
14.3W