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Terahertz generation from graphene surface plasmon polaritons excited by a cyclotron electron beam

Conference Paper


Abstract


  • A novel physical mechanism is reported which can generate coherent and tunable terahertz (THz) radiation. Due to the natural periodicity of 2¿ of circular cylindrical graphene structure, the surface plasmon polaritions (SPPs), excited by a cyclotron electron beam (CEB), can be transformed into radiation. The radiation density is strongly enhanced over two orders, up to 105 W/cm2. The radiation frequency can be widely tuned by adjusting the beam energy and chemical potential. This mechanism opens a way for developing room temperature, tunable, coherent and intense pulsed or even CW THz radiation sources to cover the whole THz frequency regime.

UOW Authors


  •   Zhao, Tao (external author)
  •   Hu, Min (external author)
  •   Zhong, Renbin (external author)
  •   Chen, Xiaoxing (external author)
  •   Zhang, Ping (external author)
  •   Gong, Sen (external author)
  •   Zhang, C
  •   Liu, Shenggang (external author)

Publication Date


  • 2016

Citation


  • Zhao, T., Hu, M., Zhong, R., Chen, X., Zhang, P., Gong, S., Zhang, C. & Liu, S. (2016). Terahertz generation from graphene surface plasmon polaritons excited by a cyclotron electron beam. International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz (pp. 1-2). United States: IEEE.

Scopus Eid


  • 2-s2.0-85006166053

Start Page


  • 1

End Page


  • 2

Abstract


  • A novel physical mechanism is reported which can generate coherent and tunable terahertz (THz) radiation. Due to the natural periodicity of 2¿ of circular cylindrical graphene structure, the surface plasmon polaritions (SPPs), excited by a cyclotron electron beam (CEB), can be transformed into radiation. The radiation density is strongly enhanced over two orders, up to 105 W/cm2. The radiation frequency can be widely tuned by adjusting the beam energy and chemical potential. This mechanism opens a way for developing room temperature, tunable, coherent and intense pulsed or even CW THz radiation sources to cover the whole THz frequency regime.

UOW Authors


  •   Zhao, Tao (external author)
  •   Hu, Min (external author)
  •   Zhong, Renbin (external author)
  •   Chen, Xiaoxing (external author)
  •   Zhang, Ping (external author)
  •   Gong, Sen (external author)
  •   Zhang, C
  •   Liu, Shenggang (external author)

Publication Date


  • 2016

Citation


  • Zhao, T., Hu, M., Zhong, R., Chen, X., Zhang, P., Gong, S., Zhang, C. & Liu, S. (2016). Terahertz generation from graphene surface plasmon polaritons excited by a cyclotron electron beam. International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz (pp. 1-2). United States: IEEE.

Scopus Eid


  • 2-s2.0-85006166053

Start Page


  • 1

End Page


  • 2