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arXiv · 2403.00831

Pure moving optical media consisting of magnetochiral metasurfaces

Toshiyuki Kodama·Toshihiro Nakanishi·Kei Sawada·Satoshi Tomita
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Abstract

We report numerical studies of microwave bianisotropies by magnetochiral (MCh) metasurfaces consisting of double Z-type gammadions with perpendicularly magnetized substrates. The metasurfaces' effective polarizability tensor, extracted from calculated reflection and transmission coefficients, has components of the non-reciprocal moving-type bianisotropy as well as the reciprocal chiral-type bianisotropy and non-reciprocal magneto-optical (MO) effect. Combination of the metasurfaces with contraposition MCh metasurfaces cancels both the chiral-type bianisotropy and MO effect, resulting in pure moving optical media. Achieved perfect transmission with phase difference of $\pi$ realizes an ideal gyrator for arbitrary spatial and polarization modes.

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Toshiyuki Kodama, Toshihiro Nakanishi, Kei Sawada, Satoshi Tomita. 2024-02-28. Pure moving optical media consisting of magnetochiral metasurfaces. https://doi.org/10.1364/ome.535115

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