publication . Article . Other literature type . 2018

High-Energy, Short-Duration Bursts of Coherent Terahertz Radiation from an Embedded Plasma Dipole.

Dino A. Jaroszynski; Teyoun Kang; Hyung Seon Song; Young-Kuk Kim; Min Sup Hur; Bernhard Ersfeld; Kyu Been Kwon;
Open Access English
  • Published: 09 Jan 2018 Journal: Scientific Reports, volume 8 (eissn: 2045-2322, Copyright policy)
  • Publisher: Nature Publishing Group UK
Abstract
Abstract Emission of radiation from electrons undergoing plasma oscillations (POs) at the plasma frequency has attracted interest because of the existence of intriguing and non-trivial coupling mechanism between the electrostatic PO and the emitted electromagnetic wave. While broadband emission from plasma waves in inhomogeneous plasma is well known, the underlying physics of narrowband emission at the plasma frequency observed in experiments and in solar radio-bursts is obscure. Here we show that a spatially-localized plasma dipole oscillation (PDO) can be generated when electrons are trapped in a moving train of potential wells produced by the ponderomotive fo...
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doi: 10.1038/s41598-017-18399-3
pmc: PMC5760715
pmid: 29317689
Subjects
arXiv: Physics::Plasma PhysicsAstrophysics::High Energy Astrophysical PhenomenaPhysics::Space Physics
free text keywords: Article, electrons, plasma oscillations, POs, plasma frequency, electromagnetic wave, plasma dipole oscillation, Plasma electrodynamics, Multidisciplinary, QC717, Medicine, R, Science, Q, Terahertz radiation, Laser, law.invention, law, Dipole, Plasma oscillation, Atomic physics, Plasma, Ponderomotive force, Electron, Electromagnetic radiation, Physics
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CRITICAL MASS: Collective radiation-beam-plasma interactions at high intensities
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Enhanced European Coordination for Accelerator Research & Development
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