Surface Waves on Self-Complementary Metasurfaces: All-Frequency Hyperbolicity, Extreme Canalization, and TE-TM Polarization Degeneracy

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 theoretica...

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Bibliographic Details
Published in:Physical review. X 2021-08, Vol.11 (3), p.031038, Article 031038
Main Authors: Yermakov, Oleh, Lenets, Vladimir, Sayanskiy, Andrey, Baena, Juan, Martini, Enrica, Glybovski, Stanislav, Maci, Stefano
Format: Article
Language:English
Subjects:
Data processing
Data transfer (computers)
Demultiplexers
Dipole antennas
Directivity
Electromagnetic fields
Electromagnetic radiation
Electronic devices
Energy transfer
Frequency shift
Graphene
Metal sheets
Metasurfaces
Miniaturization
Near fields
Optical data processing
Periodic structures
Planar structures
Plane waves
Plasmons
Polaritons
Polarization
Polarizers
Surface waves
Unit cell
Wave propagation
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Summary: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 a structure is hyperbolic for any frequency. We demonstrate the possibility of switching the canalization direction of surface waves with ultimately flat phase fronts for 90° by a very small frequency shift, paving the way to the extreme tunability and surface-wave routing. We reveal the polarization degree of freedom inherent to plane waves by demonstrating the all-frequency TE-TM polarization degeneracy of the surface waves along two principal directions. The results obtained open a plethora of opportunities for practical applications, including flat polarization devices, optical data-processing systems, sensing, holography and antennas.
ISSN:2160-3308
2160-3308
DOI:10.1103/PhysRevX.11.031038