Constraints on co- and cross-polarization reflection and transmission of Babinet-complementary metasurfaces

• Published in: Photonics and nanostructures Vol. 62; p. 101320
• Main Authors: Zhuravlev, A.G., Pulido-Mancera, L.M., Sayanskiy, A.D., Lenets, V.A., Glybovski, S.B., Baena, J.D.
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 01-12-2024
• Subjects: Babinet-complementary metasurface; Metasurface; Reflection matrix; Transmission matrix; Metasurface; Babinet-complementary metasurface; Reflection matrix; Transmission matrix
• ISSN: 1569-4410
• DOI: 10.1016/j.photonics.2024.101320

A study of constraints on reflection and transmission coefficients for Babinet-complementary metasurfaces is presented in this work. These coefficients have been found to describe circular paths in the complex plane, whose centers and radii are affected by losses. Additionally, it has been shown that it is possible to fully control the cross-polarization coefficients by rotating the metasurface with respect to the polarization direction. Our findings have been verified through numerical simulations and experiments. The properties discussed in this paper could be useful in limiting the types of possible responses of metasurfaces.
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•Complex reflection and transmission coefficients of metasurfaces obey circumference equations.•Their centers and radii can be estimated from the knowledge of the absorbed power.•Babinet complementary metasurfaces satisfy the same properties.•Cross-polarization effects can be controlled by rotating the metasurface.•Good agreement is observed between theory, simulations, and experiment.