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Theoretical analysis and spatial–temporal dynamic simulation of radiation from graphene

  • Regular Article - Optical Phenomena and Photonics
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Abstract

In this paper, the terahertz (THz) radiation based on the graphene is studied by theoretical analysis and particle-in-cell (PIC) simulation. We present the transition radiation (TR) of the charged particle traversing a monoatomic graphene layer under arbitrary incidence. By theoretical analysis, we find strongly tunable effects of the radiation field distribution related to the electron’s incident angle, substrate permittivity and graphene conductivity. In the case of the normal incidence, the transition radiation exhibits strong symmetry and considerably more intensive than that at oblique incidence. Furthermore, the plasmon and radiation are simulated by a PIC code with the method of equivalent permittivity to deal graphene. With the PIC code, we observe the spatial–temporal dynamics of plasmon and transition radiation from graphene. Meanwhile, the PIC simulation results of radiation are in good agreement with those by theoretical analysis.

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Data Availability Statement

This manuscript has no associated data or the data will not be deposited. [Author’s comment: The data are so complixed that they are very difficult to be deposied.]

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Authors and Affiliations

  1. University of Electronic Science and Technology of China, Chengdu, China

    Jincheng Hu, Xiaoyan Zhao, Sidou Guo, Neng Xiong, Wangju Xu, Kaichun Zhang, Diwei Liu, Min Hu, Zhenhua Wu, Renbin Zhong, Jun Zhou, Tao Zhao & Wei Wang

Authors
  1. Jincheng Hu
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  2. Xiaoyan Zhao
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  3. Sidou Guo
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  4. Neng Xiong
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  5. Wangju Xu
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  6. Kaichun Zhang
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  7. Diwei Liu
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  8. Min Hu
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  9. Zhenhua Wu
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  10. Renbin Zhong
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  11. Jun Zhou
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  12. Tao Zhao
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  13. Wei Wang
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Contributions

The authors contributed to this paper in the following proportions: Kaichun Zhang (theoretical calculations, discussion of results)—40%, Diwei Liu (theoretical calculations)—5%, Min Hu (experimental analysis)—5%, Sidou Guo (experimental analysis)—5%, Neng Xiong (experimental analysis)—5%, Wangju Xu (experimental analysis)—5%, Zhenhua Wu (the simulation analysis)—5%, Renbin Zhong (the simulation analysis)—5%, Jun Zhou (the simulation analysis)—5%, Tao Zhao (the simulation analysis)—5%, Wei Wang (the simulation analysis)—5%, Jincheng Hu (discussion of results)—5%, and Xiaoyan Zhao (discussion of results)—5%

Corresponding author

Correspondence to Kaichun Zhang.

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Hu, J., Zhao, X., Guo, S. et al. Theoretical analysis and spatial–temporal dynamic simulation of radiation from graphene. Eur. Phys. J. D 75, 85 (2021). https://doi.org/10.1140/epjd/s10053-021-00097-5

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  • DOI: https://doi.org/10.1140/epjd/s10053-021-00097-5

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