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The Nonlinear Propagation of Terahertz Wave in Plasmas

  • Harbin Institute of Technology
  • Luoyang Hydraulic Engineering Technical Research Institute

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

The nonlinear propagation of a terahertz wave with Gaussian beam in plasma has been investigated in this paper. The nonlinearities of pondermotive force on electron and the relativistic oscillation of the electron mass are used to study the effects on the propagation of terahertz wave in plasmas. In the present theoretical investigation, the common parabolic equation approach under the paraxial ray theory and WKB method have been adopted. Then the nonlinear differential equation for the beam-width parameter has been established and solved numerically. The numerical results show that the ponderomotive force on electron and the relativistic oscillation of the electron mass cause the periodic self-focusing/defocusing of terahertz wave. Additionally the parameteric effects on the variation of terahertz beam width parameter have been presented graphically and discussed.

Original languageEnglish
Title of host publication2018 12th International Symposium on Antennas, Propagation and EM Theory, ISAPE 2018 - Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781538673027
DOIs
StatePublished - 2 Jul 2018
Event12th International Symposium on Antennas, Propagation and EM Theory, ISAPE 2018 - Hangzhou, China
Duration: 3 Dec 20186 Dec 2018

Publication series

Name2018 12th International Symposium on Antennas, Propagation and EM Theory, ISAPE 2018 - Proceedings

Conference

Conference12th International Symposium on Antennas, Propagation and EM Theory, ISAPE 2018
Country/TerritoryChina
CityHangzhou
Period3/12/186/12/18

Keywords

  • Terahertz wave
  • nonlinear propagation
  • plasma
  • relativistic and ponderomotive
  • self-focusing

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