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Independent Modulation of the Phase and Amplitude of Electromagnetic Waves Based on the Phase Change of VO2 and Mode Coupling

Received: 11 July 2021     Accepted: 2 August 2021     Published: 12 August 2021
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Abstract

Metasurfaces in a metal–semiconductor–metal configuration have been studied in multiple contexts, including perfect absorption and phase modulation. Nevertheless, limit progress has been achieved in independent phase modulation. To study further in this work, a metasurface composed of an Au film/ VO2 film/ Au patch array with square holes was proposed in this paper. Through simulating and analysing the optical properties, simulated results indicated that an extremely switchable function can be realized by modulating the phase transition of VO2, when VO2 was in the metal (semiconductor) phase, the whole structure represented as ON (OFF) state. Additionally, the efficient modulation depth is approximately 99.6% for the y-polarization at a wavelength of 2.019 µm. What’s more, by modulating symmetry-breaking of the structure or polarization, an extreme reflection phase change can been applied. As for the former, by adjusting the asymmetry degreed, the reflection phase can change from less than 180° to nearly 360°, and for the latter, the adjustment in polarization resulted in a phase change of nearly 180° for the x-polarization and nearly 360° for the y-polarization. While the amplitude remained almost constant at the corresponding wavelength. That is to say, an independent regulation of amplitude and phase was accomplished. And a two-mode one-port temporal coupled mode theory supported by full-wave simulations can explain the underlying physics of the designed independent phase modulation. The research findings mentioned above established the possibility for plasmonic integration as well as the design of multi-functional devices such as gradient metasurfaces and temperature-controlled switches.

Published in American Journal of Physics and Applications (Volume 9, Issue 4)
DOI 10.11648/j.ajpa.20210904.13
Page(s) 88-93
Creative Commons

This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.

Copyright

Copyright © The Author(s), 2021. Published by Science Publishing Group

Keywords

Metasurfaces, Temporal Coupled Mode Theory, Vanadium Dioxide, Optical Switching

References
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Cite This Article
  • APA Style

    Tianrui Pan, Yuan Pei, Maosheng Wang, Xiaojuan Xie, Wanxia Huang. (2021). Independent Modulation of the Phase and Amplitude of Electromagnetic Waves Based on the Phase Change of VO2 and Mode Coupling. American Journal of Physics and Applications, 9(4), 88-93. https://doi.org/10.11648/j.ajpa.20210904.13

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    ACS Style

    Tianrui Pan; Yuan Pei; Maosheng Wang; Xiaojuan Xie; Wanxia Huang. Independent Modulation of the Phase and Amplitude of Electromagnetic Waves Based on the Phase Change of VO2 and Mode Coupling. Am. J. Phys. Appl. 2021, 9(4), 88-93. doi: 10.11648/j.ajpa.20210904.13

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    AMA Style

    Tianrui Pan, Yuan Pei, Maosheng Wang, Xiaojuan Xie, Wanxia Huang. Independent Modulation of the Phase and Amplitude of Electromagnetic Waves Based on the Phase Change of VO2 and Mode Coupling. Am J Phys Appl. 2021;9(4):88-93. doi: 10.11648/j.ajpa.20210904.13

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  • @article{10.11648/j.ajpa.20210904.13,
      author = {Tianrui Pan and Yuan Pei and Maosheng Wang and Xiaojuan Xie and Wanxia Huang},
      title = {Independent Modulation of the Phase and Amplitude of Electromagnetic Waves Based on the Phase Change of VO2 and Mode Coupling},
      journal = {American Journal of Physics and Applications},
      volume = {9},
      number = {4},
      pages = {88-93},
      doi = {10.11648/j.ajpa.20210904.13},
      url = {https://doi.org/10.11648/j.ajpa.20210904.13},
      eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ajpa.20210904.13},
      abstract = {Metasurfaces in a metal–semiconductor–metal configuration have been studied in multiple contexts, including perfect absorption and phase modulation. Nevertheless, limit progress has been achieved in independent phase modulation. To study further in this work, a metasurface composed of an Au film/ VO2 film/ Au patch array with square holes was proposed in this paper. Through simulating and analysing the optical properties, simulated results indicated that an extremely switchable function can be realized by modulating the phase transition of VO2, when VO2 was in the metal (semiconductor) phase, the whole structure represented as ON (OFF) state. Additionally, the efficient modulation depth is approximately 99.6% for the y-polarization at a wavelength of 2.019 µm. What’s more, by modulating symmetry-breaking of the structure or polarization, an extreme reflection phase change can been applied. As for the former, by adjusting the asymmetry degreed, the reflection phase can change from less than 180° to nearly 360°, and for the latter, the adjustment in polarization resulted in a phase change of nearly 180° for the x-polarization and nearly 360° for the y-polarization. While the amplitude remained almost constant at the corresponding wavelength. That is to say, an independent regulation of amplitude and phase was accomplished. And a two-mode one-port temporal coupled mode theory supported by full-wave simulations can explain the underlying physics of the designed independent phase modulation. The research findings mentioned above established the possibility for plasmonic integration as well as the design of multi-functional devices such as gradient metasurfaces and temperature-controlled switches.},
     year = {2021}
    }
    

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  • TY  - JOUR
    T1  - Independent Modulation of the Phase and Amplitude of Electromagnetic Waves Based on the Phase Change of VO2 and Mode Coupling
    AU  - Tianrui Pan
    AU  - Yuan Pei
    AU  - Maosheng Wang
    AU  - Xiaojuan Xie
    AU  - Wanxia Huang
    Y1  - 2021/08/12
    PY  - 2021
    N1  - https://doi.org/10.11648/j.ajpa.20210904.13
    DO  - 10.11648/j.ajpa.20210904.13
    T2  - American Journal of Physics and Applications
    JF  - American Journal of Physics and Applications
    JO  - American Journal of Physics and Applications
    SP  - 88
    EP  - 93
    PB  - Science Publishing Group
    SN  - 2330-4308
    UR  - https://doi.org/10.11648/j.ajpa.20210904.13
    AB  - Metasurfaces in a metal–semiconductor–metal configuration have been studied in multiple contexts, including perfect absorption and phase modulation. Nevertheless, limit progress has been achieved in independent phase modulation. To study further in this work, a metasurface composed of an Au film/ VO2 film/ Au patch array with square holes was proposed in this paper. Through simulating and analysing the optical properties, simulated results indicated that an extremely switchable function can be realized by modulating the phase transition of VO2, when VO2 was in the metal (semiconductor) phase, the whole structure represented as ON (OFF) state. Additionally, the efficient modulation depth is approximately 99.6% for the y-polarization at a wavelength of 2.019 µm. What’s more, by modulating symmetry-breaking of the structure or polarization, an extreme reflection phase change can been applied. As for the former, by adjusting the asymmetry degreed, the reflection phase can change from less than 180° to nearly 360°, and for the latter, the adjustment in polarization resulted in a phase change of nearly 180° for the x-polarization and nearly 360° for the y-polarization. While the amplitude remained almost constant at the corresponding wavelength. That is to say, an independent regulation of amplitude and phase was accomplished. And a two-mode one-port temporal coupled mode theory supported by full-wave simulations can explain the underlying physics of the designed independent phase modulation. The research findings mentioned above established the possibility for plasmonic integration as well as the design of multi-functional devices such as gradient metasurfaces and temperature-controlled switches.
    VL  - 9
    IS  - 4
    ER  - 

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Author Information
  • School of Physics and Electronic Information & Anhui Province Key Laboratory of Optoelectronic Materials Science and Technology, Anhui Normal University, Wuhu, China

  • School of Physics and Electronic Information & Anhui Province Key Laboratory of Optoelectronic Materials Science and Technology, Anhui Normal University, Wuhu, China

  • School of Physics and Electronic Information & Anhui Province Key Laboratory of Optoelectronic Materials Science and Technology, Anhui Normal University, Wuhu, China

  • School of Physics and Electronic Information & Anhui Province Key Laboratory of Optoelectronic Materials Science and Technology, Anhui Normal University, Wuhu, China

  • School of Physics and Electronic Information & Anhui Province Key Laboratory of Optoelectronic Materials Science and Technology, Anhui Normal University, Wuhu, China

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