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Observation of edge solitons in photonic graphene

Author

Listed:
  • Zhaoyang Zhang

    (Xi’an Jiaotong University)

  • Rong Wang

    (Xi’an Jiaotong University)

  • Yiqi Zhang

    (Xi’an Jiaotong University
    Xi’an Jiaotong University)

  • Yaroslav V. Kartashov

    (Russian Academy of Sciences)

  • Feng Li

    (Xi’an Jiaotong University)

  • Hua Zhong

    (Xi’an Jiaotong University)

  • Hua Guan

    (Chinese Academy of Sciences)

  • Kelin Gao

    (Chinese Academy of Sciences)

  • Fuli Li

    (Xi’an Jiaotong University)

  • Yanpeng Zhang

    (Xi’an Jiaotong University)

  • Min Xiao

    (University of Arkansas
    Nanjing University)

Abstract

Edge states emerge in diverse areas of science, offering promising opportunities for the development of future electronic or optoelectronic devices, sound and light propagation control in acoustics and photonics. Previous experiments on edge states in photonics were carried out mostly in linear regimes, but the current belief is that nonlinearity introduces more striking features into physics of edge states, leading to the formation of edge solitons, optical isolation, making possible stable lasing in such states, to name a few. Here we report the observation of edge solitons at the zigzag edge of a reconfigurable photonic graphene lattice created via the effect of electromagnetically induced transparency in an atomic vapor cell with controllable nonlinearity. To obtain edge solitons, Raman gain is introduced to compensate strong absorption experienced by the edge state during propagation. Our observations may open the way for future experimental exploration of topological photonics on this nonlinear, reconfigurable platform.

Suggested Citation

  • Zhaoyang Zhang & Rong Wang & Yiqi Zhang & Yaroslav V. Kartashov & Feng Li & Hua Zhong & Hua Guan & Kelin Gao & Fuli Li & Yanpeng Zhang & Min Xiao, 2020. "Observation of edge solitons in photonic graphene," Nature Communications, Nature, vol. 11(1), pages 1-7, December.
    • Handle: RePEc:nat:natcom:v:11:y:2020:i:1:d:10.1038_s41467-020-15635-9
    DOI: 10.1038/s41467-020-15635-9
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    Cited by:

    1. Tang, Qian & Zhang, Yiqi & Kartashov, Yaroslav V. & Li, Yongdong & Konotop, Vladimir V., 2022. "Vector valley Hall edge solitons in superhoneycomb lattices," Chaos, Solitons & Fractals, Elsevier, vol. 161(C).
    2. Kartashov, Yaroslav V. & Konotop, Vladimir V., 2024. "Topological star junctions: Linear modes and solitons," Chaos, Solitons & Fractals, Elsevier, vol. 179(C).
    3. Liu, Xiuye & Zeng, Jianhua, 2023. "Matter-wave gap solitons and vortices of dense Bose–Einstein condensates in Moiré optical lattices," Chaos, Solitons & Fractals, Elsevier, vol. 174(C).
    4. Wu, Zhenkun & Yang, Kaibo & Zhang, Yagang & Ren, Xijun & Wen, Feng & Gu, Yuzong & Guo, Lijun, 2022. "Nonlinear conical diffraction in fractional dimensions with a PT-symmetric optical lattice," Chaos, Solitons & Fractals, Elsevier, vol. 158(C).
    5. Ren, Boquan & Kartashov, Yaroslav V. & Wang, Hongguang & Li, Yongdong & Zhang, Yiqi, 2023. "Floquet topological insulators with hybrid edges," Chaos, Solitons & Fractals, Elsevier, vol. 166(C).
    6. Wu, Zhenkun & Yang, Kaibo & Ren, Xijun & Li, Peng & Wen, Feng & Gu, Yuzong & Guo, Lijun, 2022. "Conical diffraction modulation in fractional dimensions with a PT-symmetric potential," Chaos, Solitons & Fractals, Elsevier, vol. 164(C).

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