Graphene-based Multi-band Terahertz Anisotropic Metamaterial Absorber Composed of Square-Shaped Resonator Array Featuring Three Apertures
Asgari, Somayyeh; Fabritius, Tapio (2024-11-27)
IEEE
27.11.2024
S. Asgari and T. Fabritius, "Graphene-based Multi-band Terahertz Anisotropic Metamaterial Absorber Composed of Square-Shaped Resonator Array Featuring Three Apertures," 2024 International Conference on Optical MEMS and Nanophotonics (OMN), San Sebastian, Spain, 2024, pp. 1-2, doi: 10.1109/OMN61224.2024.10685275.
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© 2024 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
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Julkaisun pysyvä osoite on
https://urn.fi/URN:NBN:fi:oulu-202503252204
https://urn.fi/URN:NBN:fi:oulu-202503252204
Tiivistelmä
Abstract
In this paper, we have designed a multi-band graphene-based anisotropic metamaterial absorber composed of a square-shaped resonator array featuring three apertures in the terahertz (THz) region. The absorber has a maximum of four/two absorption bands in transverse magnetic (TM)/transverse electric (TE) modes. In TM mode: two of the absorption peaks reach 100% and two other ones reach 85%, with an average absorption of 92.5%. In TE mode: the absorption peaks reach 50% and 89%, with an average absorption of 69.5%. The absorber has a maximum linear dichroism (LD) of 90%. The proposed device can be utilized in the design of future multi-task terahertz systems.
In this paper, we have designed a multi-band graphene-based anisotropic metamaterial absorber composed of a square-shaped resonator array featuring three apertures in the terahertz (THz) region. The absorber has a maximum of four/two absorption bands in transverse magnetic (TM)/transverse electric (TE) modes. In TM mode: two of the absorption peaks reach 100% and two other ones reach 85%, with an average absorption of 92.5%. In TE mode: the absorption peaks reach 50% and 89%, with an average absorption of 69.5%. The absorber has a maximum linear dichroism (LD) of 90%. The proposed device can be utilized in the design of future multi-task terahertz systems.
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