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Efficiently accelerated free electrons by metallic laser accelerator

Author

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  • Dingguo Zheng

    (Chinese Academy of Sciences
    University of Chinese Academy of Sciences)

  • Siyuan Huang

    (Chinese Academy of Sciences
    University of Chinese Academy of Sciences)

  • Jun Li

    (Chinese Academy of Sciences)

  • Yuan Tian

    (Chinese Academy of Sciences
    University of Chinese Academy of Sciences)

  • Yongzhao Zhang

    (Chinese Academy of Sciences
    University of Chinese Academy of Sciences)

  • Zhongwen Li

    (Chinese Academy of Sciences)

  • Huanfang Tian

    (Chinese Academy of Sciences)

  • Huaixin Yang

    (Chinese Academy of Sciences
    University of Chinese Academy of Sciences
    Songshan Lake Materials Laboratory)

  • Jianqi Li

    (Chinese Academy of Sciences
    University of Chinese Academy of Sciences
    Songshan Lake Materials Laboratory
    Southern University of Science and Technology)

Abstract

Strong electron-photon interactions occurring in a dielectric laser accelerator provide the potential for development of a compact electron accelerator. Theoretically, metallic materials exhibiting notable surface plasmon-field enhancements can possibly generate a high electron acceleration capability. Here, we present a design for metallic material-based on-chip laser-driven accelerators that show a remarkable electron acceleration capability, as demonstrated in ultrafast electron microscopy investigations. Under phase-matching conditions, efficient and continuous acceleration of free electrons on a periodic nanostructure can be achieved. Importantly, an asymmetric spectral structure in which the vast majority of the electrons are in the energy-gain states has been obtained by means of a periodic bowtie-structure accelerator. Due to the presence of surface plasmon enhancement and nonlinear optical effects, the maximum acceleration gradient can reach as high as 0.335 GeV/m. This demonstrates that metallic laser accelerator could provide a way to develop compact accelerators on chip.

Suggested Citation

  • Dingguo Zheng & Siyuan Huang & Jun Li & Yuan Tian & Yongzhao Zhang & Zhongwen Li & Huanfang Tian & Huaixin Yang & Jianqi Li, 2023. "Efficiently accelerated free electrons by metallic laser accelerator," Nature Communications, Nature, vol. 14(1), pages 1-7, December.
    • Handle: RePEc:nat:natcom:v:14:y:2023:i:1:d:10.1038_s41467-023-41624-9
    DOI: 10.1038/s41467-023-41624-9
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    References listed on IDEAS

    as
    1. E. A. Peralta & K. Soong & R. J. England & E. R. Colby & Z. Wu & B. Montazeri & C. McGuinness & J. McNeur & K. J. Leedle & D. Walz & E. B. Sozer & B. Cowan & B. Schwartz & G. Travish & R. L. Byer, 2013. "Demonstration of electron acceleration in a laser-driven dielectric microstructure," Nature, Nature, vol. 503(7474), pages 91-94, November.
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