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A Terahertz Chiral Metamaterial modulator

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A Terahertz Chiral Metamaterial modulator. / Kindness, Stephen; Almond, Nikita; Wei, Binbin; Michailow, Wladislaw; Delfanazari, Kaveh; Braeuninger-Weimer, Philipp; Hofmann, Stephan; Beere, Harvey E.; Ritchie, David; Degl'Innocenti, Riccardo.

In: Advanced Optical Materials, 16.08.2020.

Research output: Contribution to journalJournal article

Harvard

Kindness, S, Almond, N, Wei, B, Michailow, W, Delfanazari, K, Braeuninger-Weimer, P, Hofmann, S, Beere, HE, Ritchie, D & Degl'Innocenti, R 2020, 'A Terahertz Chiral Metamaterial modulator', Advanced Optical Materials. https://doi.org/10.1002/adom.202000581

APA

Kindness, S., Almond, N., Wei, B., Michailow, W., Delfanazari, K., Braeuninger-Weimer, P., Hofmann, S., Beere, H. E., Ritchie, D., & Degl'Innocenti, R. (2020). A Terahertz Chiral Metamaterial modulator. Advanced Optical Materials. https://doi.org/10.1002/adom.202000581

Vancouver

Kindness S, Almond N, Wei B, Michailow W, Delfanazari K, Braeuninger-Weimer P et al. A Terahertz Chiral Metamaterial modulator. Advanced Optical Materials. 2020 Aug 16. https://doi.org/10.1002/adom.202000581

Author

Kindness, Stephen ; Almond, Nikita ; Wei, Binbin ; Michailow, Wladislaw ; Delfanazari, Kaveh ; Braeuninger-Weimer, Philipp ; Hofmann, Stephan ; Beere, Harvey E. ; Ritchie, David ; Degl'Innocenti, Riccardo. / A Terahertz Chiral Metamaterial modulator. In: Advanced Optical Materials. 2020.

Bibtex

@article{15b9f6e3db13493bb250e994ab931e4a,
title = "A Terahertz Chiral Metamaterial modulator",
abstract = "Active control of chirality in artificial media such as metamaterials is fundamental in many scientific areas, ranging from research into fundamental optical phenomena to the investigation of novel materials, spectroscopy, and imaging. Precise control of the light polarization states has great importance for light‐matter interaction in chemistry and biology, as media with diverse chiral properties react differently to the incoming polarization of light. In this work an active double layer metamaterial device based on vertically stacked ring resonators is realized by integrating electrostatically tunable graphene as an active element. The device is characterized with a THz time domain spectroscopic system demonstrating an all‐electrical control of circular dichroism and optical activity at ≈2 THz, reporting a tunable ellipticity of 0.55–0.98 and >20° rotation of the plane polarization, respectively, by modifying the conductivity of graphene. Further integration with a narrow frequency quantum cascade laser emitting at ≈1.9 THz, in a crossed polarizer experimental arrangement, realizes an active amplitude modulator, hence highlighting the versatility of this approach. These results represent an important milestone for the investigation of novel concepts in optics and in several applications in the THz range, such as wireless communications and spectroscopy.",
author = "Stephen Kindness and Nikita Almond and Binbin Wei and Wladislaw Michailow and Kaveh Delfanazari and Philipp Braeuninger-Weimer and Stephan Hofmann and Beere, {Harvey E.} and David Ritchie and Riccardo Degl'Innocenti",
year = "2020",
month = aug,
day = "16",
doi = "10.1002/adom.202000581",
language = "English",
journal = "Advanced Optical Materials",
issn = "2195-1071",
publisher = "Wiley",

}

RIS

TY - JOUR

T1 - A Terahertz Chiral Metamaterial modulator

AU - Kindness, Stephen

AU - Almond, Nikita

AU - Wei, Binbin

AU - Michailow, Wladislaw

AU - Delfanazari, Kaveh

AU - Braeuninger-Weimer, Philipp

AU - Hofmann, Stephan

AU - Beere, Harvey E.

AU - Ritchie, David

AU - Degl'Innocenti, Riccardo

PY - 2020/8/16

Y1 - 2020/8/16

N2 - Active control of chirality in artificial media such as metamaterials is fundamental in many scientific areas, ranging from research into fundamental optical phenomena to the investigation of novel materials, spectroscopy, and imaging. Precise control of the light polarization states has great importance for light‐matter interaction in chemistry and biology, as media with diverse chiral properties react differently to the incoming polarization of light. In this work an active double layer metamaterial device based on vertically stacked ring resonators is realized by integrating electrostatically tunable graphene as an active element. The device is characterized with a THz time domain spectroscopic system demonstrating an all‐electrical control of circular dichroism and optical activity at ≈2 THz, reporting a tunable ellipticity of 0.55–0.98 and >20° rotation of the plane polarization, respectively, by modifying the conductivity of graphene. Further integration with a narrow frequency quantum cascade laser emitting at ≈1.9 THz, in a crossed polarizer experimental arrangement, realizes an active amplitude modulator, hence highlighting the versatility of this approach. These results represent an important milestone for the investigation of novel concepts in optics and in several applications in the THz range, such as wireless communications and spectroscopy.

AB - Active control of chirality in artificial media such as metamaterials is fundamental in many scientific areas, ranging from research into fundamental optical phenomena to the investigation of novel materials, spectroscopy, and imaging. Precise control of the light polarization states has great importance for light‐matter interaction in chemistry and biology, as media with diverse chiral properties react differently to the incoming polarization of light. In this work an active double layer metamaterial device based on vertically stacked ring resonators is realized by integrating electrostatically tunable graphene as an active element. The device is characterized with a THz time domain spectroscopic system demonstrating an all‐electrical control of circular dichroism and optical activity at ≈2 THz, reporting a tunable ellipticity of 0.55–0.98 and >20° rotation of the plane polarization, respectively, by modifying the conductivity of graphene. Further integration with a narrow frequency quantum cascade laser emitting at ≈1.9 THz, in a crossed polarizer experimental arrangement, realizes an active amplitude modulator, hence highlighting the versatility of this approach. These results represent an important milestone for the investigation of novel concepts in optics and in several applications in the THz range, such as wireless communications and spectroscopy.

U2 - 10.1002/adom.202000581

DO - 10.1002/adom.202000581

M3 - Journal article

JO - Advanced Optical Materials

JF - Advanced Optical Materials

SN - 2195-1071

ER -