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  • Received: Apr. 13, 2020

    Accepted: Jun. 5, 2020

    Posted: Jun. 8, 2020

    Published Online: Jul. 14, 2020

    The Author Email: Fang Liu (liu_fang@tsinghua.edu.cn)

    DOI: 10.1364/PRJ.394136

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    Mengxuan Wang, Fang Liu, Yuechai Lin, Kaiyu Cui, Xue Feng, Wei Zhang, Yidong Huang. Vortex Smith–Purcell radiation generation with holographic grating[J]. Photonics Research, 2020, 8(8): 08001309

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  • Table 1. Parameters of the Simulations in Different Frequency Regions

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    Table 1. Parameters of the Simulations in Different Frequency Regions

    Parameters of Holographic GratingsParameters of Free-Electron Bunch
    FrequencyWavelengthMaterial/PermittivityThicknessPeriod (d)AreaVelocityBunching Frequency
    16.4 GHz18.3 mmPEC3.6 mm6.1 mm8.2 GHz
    1 THz300 μmPEC60 μm100 μm0.5 THz
    164 THz1.83 μm [39]360 nm610 nm82 THz
    500 THz600 nmAu (Drude model) [40]120 nm200 nm250 THz
    1640 THz183 nmAl (Drude model) [40]36 nm61 nm820 THz

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