Dual-Band Linear Polarization Converter Based on Tunable Graphene Metamaterial in Terahertz
Asgari, Somayyeh; Fabritius, Tapio (2024-09-02)
IEEE
02.09.2024
S. Asgari and T. Fabritius, "Dual-Band Linear Polarization Converter Based on Tunable Graphene Metamaterial in Terahertz," 2024 24th International Conference on Transparent Optical Networks (ICTON), Bari, Italy, 2024, pp. 1-4, doi: 10.1109/ICTON62926.2024.10647984.
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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-202503252206
https://urn.fi/URN:NBN:fi:oulu-202503252206
Tiivistelmä
Abstract
This paper proposes a dual-band linear polarization converter based on a graphene metamaterial in the terahertz (THz) region. The converter consists of a complementary-patterned graphene-based resonator array. The two bands can be tuned dynamically by alternation of the material parameters of graphene. The proposed linear polarization converter works in the frequency range of 1.7-3.7 THz with a maximum polarization conversion ratio (PCR) of 99.79% in the first band (1.7 - 2.65 THz) and 98.82% in the second band (2.65−3.7THz) when graphene chemical potential is 1 eV and the relaxation time is 2.1 ps. The proposed device can be utilized to design future polarization-sensitive THz devices and systems.
This paper proposes a dual-band linear polarization converter based on a graphene metamaterial in the terahertz (THz) region. The converter consists of a complementary-patterned graphene-based resonator array. The two bands can be tuned dynamically by alternation of the material parameters of graphene. The proposed linear polarization converter works in the frequency range of 1.7-3.7 THz with a maximum polarization conversion ratio (PCR) of 99.79% in the first band (1.7 - 2.65 THz) and 98.82% in the second band (2.65−3.7THz) when graphene chemical potential is 1 eV and the relaxation time is 2.1 ps. The proposed device can be utilized to design future polarization-sensitive THz devices and systems.
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