Spatial structure and angular momentum of electro-magnetic wave radiated from a relativistic electron moving on a spiral orbit

• Salehi Elham

  Institute for Molecular Science, National Institutes of Natural Sciences

• Katoh Masahiro

  Institute for Molecular Science, National Institutes of Natural Sciences Hiroshima University

Abstract

We derive analytic expressions for the vector potential of electromagnetic wave radiated from a relativistic electron moving on a spiral orbit under an approximation that the velocity along the spiral orbit is much larger than that perpendicular to the axis. Based on this expression, we show that the electromagnetic wave has a spiral wave front and carries angular momentum.

Journal

• Journal of Advanced Simulation in Science and Engineering

  Journal of Advanced Simulation in Science and Engineering 8 (1), 87-97, 2021

  Japan Society for Simulation Technology

Keywords

• Electromagnetic wave
• Relativistic electron
• Angular momentum
• Optical vortex

Details

• CRID: 1390569026264838656
• NII Article ID: 130008021104
• DOI: 10.15748/jasse.8.87
• ISSN: 21885303
• Web Site: https://www.jstage.jst.go.jp/article/jasse/8/1/8_87/_pdf
• Text Lang: en
• Data Source:
  • JaLC
  • Crossref
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed