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arXiv · 2004.06038

Surface waves on self-complementary metasurfaces: intrinsic hyperbolicity, dual-directional canalization and TE-TM polarization degeneracy

Vladimir Lenets·Oleh Yermakov·Andrey Sayanskiy·Juan Baena·Enrica Martini·Stanislav Glybovski·Stefano Maci
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Abstract

Self-complementary metasurfaces have gained significant attention due to their unique frequency-independent transmission and reflection properties and the possibility of the polarization transformation of plane waves. In this paper, we focus on the near-field spectrum to investigate both theoretically and experimentally the properties of surface waves supported by anisotropic self-complementary metasurfaces. We show that as a consequence of the electromagnetic Babinet's duality, such structure is hyperbolic for any frequency. We reveal the polarization degree of freedom inherent to plane waves by demonstrating the broadband TE-TM polarization degeneracy of the surface waves along two principal directions. We demonstrate the possibility of switching the canalization direction of 90 degrees by a very small frequency shift paving a way to the extreme tunability and surface wave routing. The results obtained open a plethora of opportunities for practical applications, including flat polarization devices, optical data processing systems and antennas.

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Vladimir Lenets, Oleh Yermakov, Andrey Sayanskiy, Juan Baena, Enrica Martini, Stanislav Glybovski, Stefano Maci. 2020-04-13. Surface waves on self-complementary metasurfaces: intrinsic hyperbolicity, dual-directional canalization and TE-TM polarization degeneracy. https://doi.org/10.1103/physrevx.11.031038

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