Manipulation Over Surface Waves in Bilayer Hyperbolic Metasurfaces: Topological Transition and Multidirectional Canalization

Girich, A. A.; Ivzhenko, Liubov; Hrinchenko, Artem; Tarapov, S. I.; Yermakov, Oleh

doi:10.1109/lmwc.2022.3215016

Cited by 9 publications

(4 citation statements)

References 46 publications

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“…37 In 2023, Girich et al studied surface waves (SWs) in bilayer hyperbolic metasurfaces and experimentally demonstrated tunable multi-directional in-plane channeling of SWs. 38 However, these coding metasurfaces have a fixed structure, limiting their functionality as it cannot be changed. Moreover, there are few actively tuned terahertz coding metasurfaces, which significantly hampers the development of coding metasurfaces in the terahertz field.…”

Section: Introductionmentioning

confidence: 99%

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Multi-frequency terahertz coding metasurfaces based on vanadium dioxide

Li,

Qin,

Wang

et al. 2024

Opt. Eng.

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Drawing upon the principles of digital coding metasurfaces, we propose the double-split ring resonators coding metasurface that can switch between different frequency bands with varying amplitudes. Under transverse-magnetic (TM) polarized terahertz wave incidence, the same metasurface meta-atom structure utilizes amplitude coding to achieve spatial imaging functionality. Due to limitations in device size and fabrication techniques, actively controlled coding metasurfaces in the terahertz frequency range are rare. In order to enhance the flexibility of terahertz coding metasurfaces, a phase-change material, vanadium dioxide (VO 2 ), is introduced for active control within the metasurface structure. The imaging functionality can be switched by a single switching metasurface, achieved by the phase transition characteristics between the insulating and metallic states of VO 2 . Therefore, the designed coding metasurface, which is based on the influence of VO 2 on amplitude, provides a new approach for flexible control of terahertz waves. It holds great prospects for significant applications in terahertz transmission, communication, and other emerging terahertz-related fields.

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Section: Introductionmentioning

confidence: 99%

“…In 2023, Girich et al. studied surface waves (SWs) in bilayer hyperbolic metasurfaces and experimentally demonstrated tunable multi-directional in-plane channeling of SWs 38 . However, these coding metasurfaces have a fixed structure, limiting their functionality as it cannot be changed.…”

Section: Introductionmentioning

confidence: 99%

Multi-frequency terahertz coding metasurfaces based on vanadium dioxide

Li,

Qin,

Wang

et al. 2024

Opt. Eng.

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“…wavefront manipulation [6][7][8][9], perfect absorption [10], coding [11] and generation of surface waves [12,13].…”

Section: Introductionmentioning

confidence: 99%

Highly dispersive transmission conditions for a conductive rods-based ultrathin bilayer metastructure

Abrahamyan,

Ohanyan,

Hambaryan

et al. 2024

J. Phys. D: Appl. Phys.

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We experimentally demonstrate that the transmission of microwave electromagnetic fields through a bilayer metasurface (BMS) composed of thin conductive rods can abruptly change in a narrow frequency range. A theoretical analysis based on the coupled oscillator model is performed to reveal the physical mechanism behind the frequency-dependent properties of such a structure. Two conditions primarily facilitate the observed high dispersion in the BMS. The first one is the resonant interaction between the incident microwaves and rods, leading to the formation of surface standing waves. These waves with radial electric fields enable the coupling of the near-field of rods in structural layers. The second condition is the complex value of the coupling coefficient between rods of different owing to the delayed interaction process between them. The electromagnetic response here can be effectively controlled by varying the distance between layers and the dielectric properties of the interlayer medium.

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“…Despite all the advantages of HMSs, their proper engineering for specific purposes still requires substantial advanced numerical simulation and optimization efforts, especially for near-field applications. This is especially important for multilayered and twisted photonic applications [33][34][35][36], where one needs to design two or several HMSs separately. The engineering of two-dimensional structures with hyperbolic dispersion in the visible spectrum usually assumes The red, blue and green regions correspond to the inductive, capacitive and hyperbolic regimes characterized by (i) det σ > 0, tr σ > 0, (ii) det σ > 0, tr σ < 0 and (iii) det σ < 0, respectively, where 'det' and 'tr' mean the determinant and trace of the tensor σ.…”

Section: Introductionmentioning

confidence: 99%

Designing optical hyperbolic metasurfaces based on gold nanodisks

Hrinchenko,

Yermakov

2023

J. Phys. D: Appl. Phys.

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Hyperbolic metasurfaces demonstrate their great value for the planar and near-field applications. Nevertheless, the ability to engineer the specific design of a hyperbolic metasurface with the predefined functionality is still a challenge. Here, we study the dozens of hyperbolic metasurfaces based on gold nanodisks in the visible spectrum and analyze their properties. In particular, we connect the geometric configurations of metasurface with its spectral hyperbolicity bandwidth and the efficiency of hyperbolic plasmon-polaritons canalization. We also analyze the impact of the substrate on the hyperbolic regime of a metasurface. As a result, we derive the universal empirical formula allowing to obtain the approximate design of a hyperbolic metasurface immediately. We provide the practical guidelines for the designing of hyperbolic metasurfaces that may be used for a plethora of photonic applications.

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Manipulation Over Surface Waves in Bilayer Hyperbolic Metasurfaces: Topological Transition and Multidirectional Canalization

Cited by 9 publications

References 46 publications

Multi-frequency terahertz coding metasurfaces based on vanadium dioxide

Multi-frequency terahertz coding metasurfaces based on vanadium dioxide

Highly dispersive transmission conditions for a conductive rods-based ultrathin bilayer metastructure

Designing optical hyperbolic metasurfaces based on gold nanodisks

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