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Multifunctional reconfigurable metasurfaces for manipulation of transmitted wave in THz Band

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Abstract

In this paper a procedure to design transmissive metasurfaces based on graphene-metal hybrid layers is developed and employed to design a multi-functional reconfigurable structure. Due to the inclusion of graphene, with tunable conductivity, different applications are achieved without any physical changes in the structure and by just varying the chemical potential of graphene through an electrostatic bias voltage. The designed structure consists of four identical layers to provide 360° phase-shift range with acceptable amplitude and full control of the transmitted wave front. By imposing an appropriate phase gradient profile on the supercell, several applications like beam steering, lens with arbitrary focal length and beam splitter with arbitrary angles are achieved. Simulation results of near field distributions as well as far field patterns vindicate the effectiveness of the proposed design procedure. The designed structure is promising for applications in the 6G wireless communication networks, nano-photonic and optoelectronic devices.

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The datasets generated during and/or analyzed during the current study are available from the corresponding author on reasonable request.

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The authors declare that no funds, grants, or other support were received during the preparation of this manuscript.

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M.M.: methodology, computational work, layout design, analysis of results, drafting the original manuscript, S.J. and RFD: conceptualization, analysis of results, validation, editing, supervision.

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Correspondence to Saughar Jarchi.

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Mokhayer, M., Jarchi, S. & Faraji-Dana, R. Multifunctional reconfigurable metasurfaces for manipulation of transmitted wave in THz Band. Opt Quant Electron 56, 1038 (2024). https://doi.org/10.1007/s11082-024-06992-6

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  • DOI: https://doi.org/10.1007/s11082-024-06992-6

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