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Versatile and Active THz Wave Polarization Modulators Using Metamaterial/graphene Resonators

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Versatile and Active THz Wave Polarization Modulators Using Metamaterial/graphene Resonators. / Zaman, Abdullah; Degl'Innocenti, Riccardo; Lu, Yuezhen et al.
In: Frontiers in Nanotechnology Section Nanophotonics, Vol. 5, 1057422, 31.01.2023.

Research output: Contribution to Journal/Magazine › Journal article › peer-review

Harvard

Zaman, A, Degl'Innocenti, R, Lu, Y, Almond, N, Burton, OJ, Alexander-Webber, J, Hofmann, S, Mitchell, T, Griffiths, JDP, Beere, HE & Ritchie, D 2023, 'Versatile and Active THz Wave Polarization Modulators Using Metamaterial/graphene Resonators', Frontiers in Nanotechnology Section Nanophotonics, vol. 5, 1057422. https://doi.org/10.3389/fnano.2023.1057422

APA

Zaman, A., Degl'Innocenti, R., Lu, Y., Almond, N., Burton, O. J., Alexander-Webber, J., Hofmann, S., Mitchell, T., Griffiths, J. D. P., Beere, H. E., & Ritchie, D. (2023). Versatile and Active THz Wave Polarization Modulators Using Metamaterial/graphene Resonators. Frontiers in Nanotechnology Section Nanophotonics, 5, Article 1057422. https://doi.org/10.3389/fnano.2023.1057422

Vancouver

Zaman A, Degl'Innocenti R, Lu Y, Almond N, Burton OJ, Alexander-Webber J et al. Versatile and Active THz Wave Polarization Modulators Using Metamaterial/graphene Resonators. Frontiers in Nanotechnology Section Nanophotonics. 2023 Jan 31;5:1057422. Epub 2023 Jan 31. doi: 10.3389/fnano.2023.1057422

Author

Zaman, Abdullah ; Degl'Innocenti, Riccardo ; Lu, Yuezhen et al. / Versatile and Active THz Wave Polarization Modulators Using Metamaterial/graphene Resonators. In: Frontiers in Nanotechnology Section Nanophotonics. 2023 ; Vol. 5.

Bibtex

@article{a15a03e6b3344f4abe4438e923f17682,
title = "Versatile and Active THz Wave Polarization Modulators Using Metamaterial/graphene Resonators",
abstract = "Active modification of the polarization state is a key feature for the next-generation of wireless communications, sensing, and imaging in the THz band. The polarization modulation performance of an integrated metamaterial/graphene device is investigated via a modified THz time domain spectroscopic system. Graphene{\textquoteright}s Fermi level is modified through electrostatic gating, thus modifying the device{\textquoteright}s overall optical response. Active tuning of ellipticity by >0.3 is reported at the resonant frequency of 0.80 THz. The optical activity of transmitted THz radiations is continuously modified by > 21.5deg at 0.71 THz. By carefully selecting the transmitted frequency with the relative angle between the incoming linear polarization and the device{\textquoteright}s symmetry axis, active circular dichroism and optical activity are almost independently exploited. Finally, this all-electronically tuneable versatile polarization device can be used in all applications requiring an ultrafast modulation such as polarization spectroscopy, imaging, and THz wireless generation.",
keywords = "terahertz,, metamaterials, graphene, wireless communications, integrated modulators",
author = "Abdullah Zaman and Riccardo Degl'Innocenti and Yuezhen Lu and Nikita Almond and Burton, {Oliver J.} and Jack Alexander-Webber and Stephan Hofmann and Thomas Mitchell and Griffiths, {Jonathan D. P.} and Beere, {Harvey E.} and David Ritchie",
year = "2023",
month = jan,
day = "31",
doi = "10.3389/fnano.2023.1057422",
language = "English",
volume = "5",
journal = "Frontiers in Nanotechnology Section Nanophotonics",

}

RIS

TY - JOUR

T1 - Versatile and Active THz Wave Polarization Modulators Using Metamaterial/graphene Resonators

AU - Zaman, Abdullah

AU - Degl'Innocenti, Riccardo

AU - Lu, Yuezhen

AU - Almond, Nikita

AU - Burton, Oliver J.

AU - Alexander-Webber, Jack

AU - Hofmann, Stephan

AU - Mitchell, Thomas

AU - Griffiths, Jonathan D. P.

AU - Beere, Harvey E.

AU - Ritchie, David

PY - 2023/1/31

Y1 - 2023/1/31

N2 - Active modification of the polarization state is a key feature for the next-generation of wireless communications, sensing, and imaging in the THz band. The polarization modulation performance of an integrated metamaterial/graphene device is investigated via a modified THz time domain spectroscopic system. Graphene’s Fermi level is modified through electrostatic gating, thus modifying the device’s overall optical response. Active tuning of ellipticity by >0.3 is reported at the resonant frequency of 0.80 THz. The optical activity of transmitted THz radiations is continuously modified by > 21.5deg at 0.71 THz. By carefully selecting the transmitted frequency with the relative angle between the incoming linear polarization and the device’s symmetry axis, active circular dichroism and optical activity are almost independently exploited. Finally, this all-electronically tuneable versatile polarization device can be used in all applications requiring an ultrafast modulation such as polarization spectroscopy, imaging, and THz wireless generation.

AB - Active modification of the polarization state is a key feature for the next-generation of wireless communications, sensing, and imaging in the THz band. The polarization modulation performance of an integrated metamaterial/graphene device is investigated via a modified THz time domain spectroscopic system. Graphene’s Fermi level is modified through electrostatic gating, thus modifying the device’s overall optical response. Active tuning of ellipticity by >0.3 is reported at the resonant frequency of 0.80 THz. The optical activity of transmitted THz radiations is continuously modified by > 21.5deg at 0.71 THz. By carefully selecting the transmitted frequency with the relative angle between the incoming linear polarization and the device’s symmetry axis, active circular dichroism and optical activity are almost independently exploited. Finally, this all-electronically tuneable versatile polarization device can be used in all applications requiring an ultrafast modulation such as polarization spectroscopy, imaging, and THz wireless generation.

KW - terahertz,

KW - metamaterials

KW - graphene

KW - wireless communications

KW - integrated modulators

U2 - 10.3389/fnano.2023.1057422

DO - 10.3389/fnano.2023.1057422

M3 - Journal article

VL - 5

JO - Frontiers in Nanotechnology Section Nanophotonics

JF - Frontiers in Nanotechnology Section Nanophotonics

M1 - 1057422

ER -