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Functional THz emitters based on Pancharatnam-Berry phase nonlinear metasurfaces

Author

Listed:
  • Cormac McDonnell

    (School of Electrical Engineering, Tel-Aviv University
    Center for Light-Matter Interaction, Tel-Aviv University)

  • Junhong Deng

    (Southern University of Science and Technology
    Shenzhen Institute for Quantum Science and Engineering, Southern University of Science and Technology)

  • Symeon Sideris

    (School of Electrical Engineering, Tel-Aviv University
    Center for Light-Matter Interaction, Tel-Aviv University)

  • Tal Ellenbogen

    (School of Electrical Engineering, Tel-Aviv University
    Center for Light-Matter Interaction, Tel-Aviv University)

  • Guixin Li

    (Southern University of Science and Technology
    Shenzhen Institute for Quantum Science and Engineering, Southern University of Science and Technology)

Abstract

Recent advances in the science and technology of THz waves show promise for a wide variety of important applications in material inspection, imaging, and biomedical science amongst others. However, this promise is impeded by the lack of sufficiently functional THz emitters. Here, we introduce broadband THz emitters based on Pancharatnam-Berry phase nonlinear metasurfaces, which exhibit unique optical functionalities. Using these new emitters, we experimentally demonstrate tunable linear polarization of broadband single cycle THz pulses, the splitting of spin states and THz frequencies in the spatial domain, and the generation of few-cycle pulses with temporal polarization dispersion. Finally, we apply the ability of spin control of THz waves to demonstrate circular dichroism spectroscopy of amino acids. Altogether, we achieve nanoscale and all-optical control over the phase and polarization states of the emitted THz waves.

Suggested Citation

  • Cormac McDonnell & Junhong Deng & Symeon Sideris & Tal Ellenbogen & Guixin Li, 2021. "Functional THz emitters based on Pancharatnam-Berry phase nonlinear metasurfaces," Nature Communications, Nature, vol. 12(1), pages 1-8, December.
  • Handle: RePEc:nat:natcom:v:12:y:2021:i:1:d:10.1038_s41467-020-20283-0
    DOI: 10.1038/s41467-020-20283-0
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    Cited by:

    1. Zhixiang Fan & Chao Qian & Yuetian Jia & Yiming Feng & Haoliang Qian & Er-Ping Li & Romain Fleury & Hongsheng Chen, 2024. "Holographic multiplexing metasurface with twisted diffractive neural network," Nature Communications, Nature, vol. 15(1), pages 1-10, December.

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