Semi-transparent magnetic metasurface screens with modulated impedance for mitigation of radiation in the shadow domain

IF 2.5 3区物理与天体物理 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY

Photonics and Nanostructures-Fundamentals and Applications Pub Date : 2025-02-01 DOI:10.1016/j.photonics.2025.101363

M.M. Popov, S.B. Glybovski, D.V. Tatarnikov

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引用次数: 0

Abstract

The paper proposes vertically oriented, semi-transparent metasurfaces to suppress radiation from a source in it’s shadow region. These metasurfaces consist of small metallic loop meta-atoms with lumped capacitors, designed such that their magnetic polarization is perpendicular to the incident wave. Semi-transparency is achieved by employing Fano resonance of total reflection, while undesired full transparency resonance is avoided by adjusting the capacitor placement. The metasurfaces admittance profile is analytically synthesized using geometrical optics for large source distances and numerically optimized for practical scenarios with smaller screens and closer source distances. Simulation results demonstrate up to 20 dB radiation suppression across the entire shadow region for screen sizes near 2λ and source distances around 0.5λ, without reducing the gain in the lightened domain.

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来源期刊

Photonics and Nanostructures-Fundamentals and Applications 工程技术-材料科学：综合

CiteScore

5.00

自引率

3.70%

发文量

审稿时长

62 days

期刊介绍： This journal establishes a dedicated channel for physicists, material scientists, chemists, engineers and computer scientists who are interested in photonics and nanostructures, and especially in research related to photonic crystals, photonic band gaps and metamaterials. The Journal sheds light on the latest developments in this growing field of science that will see the emergence of faster telecommunications and ultimately computers that use light instead of electrons to connect components.