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- Title
Terahertz Radiation from a Plasma Cylinder with External Radial Electric and Axial Magnetic Fields.
- Authors
Cao, L. H.; Yu, Wei; Yu, M. Y.; Yu, C. Y.; Hoffmann, Dieter H.H.
- Abstract
Terahertz (THz) radiation from a plasma cylinder with embedded radial electric and axial magnetic fields is investigated. The plasma density and the electric and magnetic fields are such that the electron plasma frequency is near the electron cyclotron frequency and in the THz regime. Two-dimensional particle-in-cell simulations show that the plasma electrons oscillate not only in the azimuthal direction but also in the radial direction. Spectral analysis shows that the resulting oscillating current pattern has a clearly defined characteristic frequency near the electron cyclotron frequency, suggesting resonance between the cyclotron and plasma oscillations. The resulting far-field THz radiation in the axial direction is also discussed.
- Publication
Laser & Particle Beams, 2021, p1
- ISSN
0263-0346
- Publication type
Article
- DOI
10.1155/2021/6666760