Polarization-insensitive electromagnetically induced transparency and its sensing performance based on spoof localized surface plasmons in vanadium dioxide-based terahertz metasurfaces

Chen, Mingming; Yang, Xue‐Xia

doi:10.1039/d3cp02561f

Cited by 5 publications

(1 citation statement)

References 43 publications

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“…Thus, the conductivity of VO 2 at different temperatures can be expressed as σ = −iε 0 ω ε e f f − 1 , where ε 0 is the dielectric constant of the vacuum, respectively. ε is the dielectric function of the composite system [36]. As T 0 = 154 K and ∆T = 2 K at temperature rise, T 0 = 143.6 K and ∆T = 6 K at temperature decrease [37].…”

Section: Design and Simulation Of Metasurface Unit Cellsmentioning

confidence: 99%

Full-Space Wavefront Shaping of Broadband Vortex Beam with Switchable Terahertz Metasurface Based on Vanadium Dioxide

Li,

Zhang,

Jiang

et al. 2023

Nanomaterials

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Currently, vortex beams are extensively utilized in the information transmission and storage of communication systems due to their additional degree of freedom. However, traditional terahertz metasurfaces only focus on the generation of narrowband vortex beams in reflection or transmission mode, which is unbeneficial for practical applications. Here, we propose and design terahertz metasurface unit cells composed of anisotropic Z-shaped metal structures, two dielectric layers, and a VO2 film layer. By utilizing the Pancharatnam–Berry phase theory, independent control of a full 2π phase over a wide frequency range can be achieved by rotating the unit cell. Moreover, the full-space mode (transmission and reflection) can also be implemented by utilizing the phase transition of VO2 film. Based on the convolution operation, three different terahertz metasurfaces are created to generate vortex beams with different wavefronts in full-space, such as deflected vortex beams, focused vortex beams, and non-diffraction vortex beams. Additionally, the divergences of these vortex beams are also analyzed. Therefore, our designed metasurfaces are capable of efficiently shaping the wavefronts of broadband vortex beams in full-space, making them promising applications for long-distance transmission, high integration, and large capacity in 6G terahertz communications.

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Section: Design and Simulation Of Metasurface Unit Cellsmentioning

confidence: 99%

Full-Space Wavefront Shaping of Broadband Vortex Beam with Switchable Terahertz Metasurface Based on Vanadium Dioxide

Li,

Zhang,

Jiang

et al. 2023

Nanomaterials

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Single and dual-band electromagnetically induced transparency in a strongly near field coupled planar toroidal terahertz metamaterial

Vaswani,

Chouhan,

Panwar

et al. 2024

Optics & Laser Technology

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Design and experimental realization of triple-band filtering metamaterial in sub-terahertz band enabled by conductivity coupling response of two identical split rings

Fang,

Yang,

Tao

et al. 2025

Optics & Laser Technology

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Polarization-insensitive electromagnetically induced transparency and its sensing performance based on spoof localized surface plasmons in vanadium dioxide-based terahertz metasurfaces

Abstract: The multi-layers terahertz metasurfaces are designed to achieve polarization-insensitive electromagnetically induced transparency (EIT) effect and its sensing performance based on spoof localized surface plasmons (S-LSPs). The unit cell of the...

Cited by 5 publications

References 43 publications

Full-Space Wavefront Shaping of Broadband Vortex Beam with Switchable Terahertz Metasurface Based on Vanadium Dioxide

Full-Space Wavefront Shaping of Broadband Vortex Beam with Switchable Terahertz Metasurface Based on Vanadium Dioxide

Single and dual-band electromagnetically induced transparency in a strongly near field coupled planar toroidal terahertz metamaterial

Design and experimental realization of triple-band filtering metamaterial in sub-terahertz band enabled by conductivity coupling response of two identical split rings

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