Study of cosmic radio bursts in lab-scale plasmas

Min Sup Hur, Teyoun Kang, Moses Chung, Dongsu Ryu, S. Yoffe, B. Ersfeld, Dino A. Jaroszynski, Hyyong Suk

Research output: Chapter in Book/Report/Conference proceedingConference contribution book


Coherent and incoherent cosmic radio bursts are abundant both in our solar system and in deep space. The solar radio bursts (SRB) from our Sun are relatively well understood. A commonly-favored explanation of the SRB is that the electromagnetic radio waves are emitted from the Langmuir waves, which are driven by energetic electron beams via bump-on-tail instability. Though this scenario has been widely verified, the conversion efficiency of the Langmuir-radio waves remains still controversial. Another interesting radio emission is the fast-radio-burst (FRB), which is believed to be originating with extremely high fluence from a point-like (i.e. in the astrophysical scale) source located outside the Milky way. However, the exact mechanism of FRB is obscure. In this talk, I present a theory and simulations of a recently-conceived, novel model for the coherent radio emission from plasmas. Our model is based on the concept of the plasma dipole oscillation (PDO), which is a stand-alone, localized plasma oscillation embedded in a plasma. It can be potentially a source of a strong cosmic radio bursts at fundamental and high harmonics of the plasma oscillation with high efficiency and diversely different polarization properties. We discovered a new solution of the fluid plasma equations, which theoretically proves that the PDO can really exist. The generation of the PDO and radio-bursts in laboratory-scale plasmas using colliding laser pulses has been demonstrated by 2D and 3D particle-in-cell simulations1, 2. Study of generating the similar PDO by colliding electron beams is under progress, to make the system reproduce the emission from space plasmas in the laboratory scale. Plans for experiments of the PDO emission is briefed.
Original languageEnglish
Title of host publication2020 IEEE International Conference on Plasma Science (ICOPS)
Place of PublicationPiscataway, NJ
Number of pages1
ISBN (Electronic)9781728153070
ISBN (Print)9781728153087
Publication statusPublished - 25 Feb 2022
Event47th IEEE International Conference on Plasma Science - Virtual
Duration: 6 Dec 202010 Dec 2020

Publication series

NameIEEE International Conference on Plasma Science (ICOPS)
ISSN (Print)0730-9244
ISSN (Electronic)2576-7208


Conference47th IEEE International Conference on Plasma Science
Abbreviated titleICOPS 2020
Internet address


  • plasma properties
  • laser theory
  • three-dimensional displays
  • fluids
  • electron beams
  • harmonic analysis
  • mathematical models
  • astrophysical plasma
  • numerical analysis
  • plasma density
  • plasma instability
  • plasma Langmuir waves
  • plasma oscillations
  • plasma simulation
  • plasma transport processes
  • radiosources (astronomical)
  • solar radiofrequency radiation


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