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Photonic Weyl point in a two-dimensional resonator lattice with a synthetic frequency dimension

Author

Listed:
  • Qian Lin

    (Stanford University)

  • Meng Xiao

    (Stanford University)

  • Luqi Yuan

    (Stanford University)

  • Shanhui Fan

    (Stanford University)

Abstract

Weyl points, as a signature of 3D topological states, have been extensively studied in condensed matter systems. Recently, the physics of Weyl points has also been explored in electromagnetic structures such as photonic crystals and metamaterials. These structures typically have complex three-dimensional geometries, which limits the potential for exploring Weyl point physics in on-chip integrated systems. Here we show that Weyl point physics emerges in a system of two-dimensional arrays of resonators undergoing dynamic modulation of refractive index. In addition, the phase of modulation can be controlled to explore Weyl points under different symmetries. Furthermore, unlike static structures, in this system the non-trivial topology of the Weyl point manifests in terms of surface state arcs in the synthetic space that exhibit one-way frequency conversion. Our system therefore provides a versatile platform to explore and exploit Weyl point physics on chip.

Suggested Citation

  • Qian Lin & Meng Xiao & Luqi Yuan & Shanhui Fan, 2016. "Photonic Weyl point in a two-dimensional resonator lattice with a synthetic frequency dimension," Nature Communications, Nature, vol. 7(1), pages 1-7, December.
    • Handle: RePEc:nat:natcom:v:7:y:2016:i:1:d:10.1038_ncomms13731
    DOI: 10.1038/ncomms13731
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    Cited by:

    1. Yaowen Hu & Mengjie Yu & Neil Sinclair & Di Zhu & Rebecca Cheng & Cheng Wang & Marko Lončar, 2022. "Mirror-induced reflection in the frequency domain," Nature Communications, Nature, vol. 13(1), pages 1-9, December.
    2. Matthew Weiner & Xiang Ni & Andrea Alù & Alexander B. Khanikaev, 2022. "Synthetic Pseudo-Spin-Hall effect in acoustic metamaterials," Nature Communications, Nature, vol. 13(1), pages 1-7, December.
    3. Chunxu Bai & Yanling Yang, 2024. "Biaxial strain effect on Josephson supercurrent in a 2D Weyl semimetal," The European Physical Journal B: Condensed Matter and Complex Systems, Springer;EDP Sciences, vol. 97(10), pages 1-11, October.

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