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Phononic integrated circuitry and spin–orbit interaction of phonons

Author

Listed:
  • Wei Fu

    (Yale University)

  • Zhen Shen

    (Yale University)

  • Yuntao Xu

    (Yale University)

  • Chang-Ling Zou

    (Yale University)

  • Risheng Cheng

    (Yale University)

  • Xu Han

    (Yale University)

  • Hong X. Tang

    (Yale University)

Abstract

High-index-contrast optical waveguides are crucial for the development of photonic integrated circuits with complex functionalities. Despite many similarities between optical and acoustic waves, high-acoustic-index-contrast phononic waveguides remain elusive, preventing intricate manipulation of phonons on par with its photonic counterpart. Here, we present the realization of such phononic waveguides and the formation of phononic integrated circuits through exploiting a gallium-nitride-on-sapphire platform, which provides strong confinement and control of phonons. By demonstrating key building blocks analogous to photonic circuit components, we establish the functionality and scalability of the phononic circuits. Moreover, the unidirectional excitation of propagating phononic modes allows the exploration of unconventional spin–orbit interaction of phonons in this circuit platform, which opens up the possibility of novel applications such as acoustic gyroscopic and non-reciprocal devices. Such phononic integrated circuits could provide an invaluable resource for both classical and quantum information processing.

Suggested Citation

  • Wei Fu & Zhen Shen & Yuntao Xu & Chang-Ling Zou & Risheng Cheng & Xu Han & Hong X. Tang, 2019. "Phononic integrated circuitry and spin–orbit interaction of phonons," Nature Communications, Nature, vol. 10(1), pages 1-7, December.
  • Handle: RePEc:nat:natcom:v:10:y:2019:i:1:d:10.1038_s41467-019-10852-3
    DOI: 10.1038/s41467-019-10852-3
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    Cited by:

    1. Ruoming Peng & Adina Ripin & Yusen Ye & Jiayi Zhu & Changming Wu & Seokhyeong Lee & Huan Li & Takashi Taniguchi & Kenji Watanabe & Ting Cao & Xiaodong Xu & Mo Li, 2022. "Long-range transport of 2D excitons with acoustic waves," Nature Communications, Nature, vol. 13(1), pages 1-7, December.
    2. I-Tung Chen & Bingzhao Li & Seokhyeong Lee & Srivatsa Chakravarthi & Kai-Mei Fu & Mo Li, 2023. "Optomechanical ring resonator for efficient microwave-optical frequency conversion," Nature Communications, Nature, vol. 14(1), pages 1-8, December.
    3. Ji-Qian Wang & Zi-Dong Zhang & Si-Yuan Yu & Hao Ge & Kang-Fu Liu & Tao Wu & Xiao-Chen Sun & Le Liu & Hua-Yang Chen & Cheng He & Ming-Hui Lu & Yan-Feng Chen, 2022. "Extended topological valley-locked surface acoustic waves," Nature Communications, Nature, vol. 13(1), pages 1-8, December.
    4. Dominik D. Bühler & Matthias Weiß & Antonio Crespo-Poveda & Emeline D. S. Nysten & Jonathan J. Finley & Kai Müller & Paulo V. Santos & Mauricio M. Lima & Hubert J. Krenner, 2022. "On-chip generation and dynamic piezo-optomechanical rotation of single photons," Nature Communications, Nature, vol. 13(1), pages 1-11, December.

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