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Electromagnetic scattering laws in Weyl systems

Author

Listed:
  • Ming Zhou

    (University of Wisconsin, Madison)

  • Lei Ying

    (University of Wisconsin, Madison)

  • Ling Lu

    (Chinese Academy of Sciences and Beijing National Laboratory for Condensed Matter Physics)

  • Lei Shi

    (Fudan University)

  • Jian Zi

    (Fudan University)

  • Zongfu Yu

    (University of Wisconsin, Madison)

Abstract

Wavelength determines the length scale of the cross section when electromagnetic waves are scattered by an electrically small object. The cross section diverges for resonant scattering, and diminishes for non-resonant scattering, when wavelength approaches infinity. This scattering law explains the colour of the sky as well as the strength of a mobile phone signal. We show that such wavelength scaling comes from the conical dispersion of free space at zero frequency. Emerging Weyl systems, offering similar dispersion at non-zero frequencies, lead to new laws of electromagnetic scattering that allow cross sections to be decoupled from the wavelength limit. Diverging and diminishing cross sections can be realized at any target wavelength in a Weyl system, providing the ability to tailor the strength of wave–matter interactions for radiofrequency and optical applications.

Suggested Citation

  • Ming Zhou & Lei Ying & Ling Lu & Lei Shi & Jian Zi & Zongfu Yu, 2017. "Electromagnetic scattering laws in Weyl systems," Nature Communications, Nature, vol. 8(1), pages 1-7, December.
    • Handle: RePEc:nat:natcom:v:8:y:2017:i:1:d:10.1038_s41467-017-01533-0
    DOI: 10.1038/s41467-017-01533-0
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    Cited by:

    1. Chao Qian & Yi Yang & Yifei Hua & Chan Wang & Xiao Lin & Tong Cai & Dexin Ye & Erping Li & Ido Kaminer & Hongsheng Chen, 2022. "Breaking the fundamental scattering limit with gain metasurfaces," Nature Communications, Nature, vol. 13(1), pages 1-7, December.
    2. Qiaolu Chen & Fujia Chen & Yuang Pan & Chaoxi Cui & Qinghui Yan & Li Zhang & Zhen Gao & Shengyuan A. Yang & Zhi-Ming Yu & Hongsheng Chen & Baile Zhang & Yihao Yang, 2022. "Discovery of a maximally charged Weyl point," Nature Communications, Nature, vol. 13(1), pages 1-7, December.

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