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Hur, Min Sup
Computational Plasma Lab
Research Interests
  • Laser-Plasma Electron Accelerator and Table-top Femto Hard X-ray generation

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Feasibility study of the plasma electron density measurement by electromagnetic radiation from the laser-driven plasma wave

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Title
Feasibility study of the plasma electron density measurement by electromagnetic radiation from the laser-driven plasma wave
Author
Jang, D. G.Kim, J. J.Hur, Min SupSuk, H.
Keywords
Detector modelling and simulations I (interaction of radiation with matter, interaction of photons with matter, interaction of hadrons with matter, etc); Detector modelling and simulations II (electric fields, charge transport, multiplication and induction, pulse formation, electron emission, etc); Plasma diagnostics - interferometry, spectroscopy and imaging; Wake-field acceleration (laser-driven, electron-driven)
Issue Date
201204
Publisher
IOP PUBLISHING LTD
Citation
JOURNAL OF INSTRUMENTATION, v.7, no.4, pp.1 - 6
Abstract
When an intense laser beam is focused in a plasma, a plasma wake wave is generated and the oscillatary motion of the plasma electrons produces a strong electromagnetic wave by a Cherenkov-like process. Spectrum of the genetated electromagnetic wave has dependence on the plasma density. In this paper, we propose to use the emitted electromagnetic radiation for plasma diagnostic, which may provide an accurate information for local electron densities of the plasma and will be very useful for three-dimensional plasma density profiles by changing the focal point location of the laser beam. Two-dimensional (2-D) particle-in-cell (PIC) simulation is used to study the correlation between the spectrum of the emitted radiation and plasma density, and the results demonstrate that this method is promising for the electron density measurement in the plasma.
URI
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DOI
http://dx.doi.org/10.1088/1748-0221/7/04/C04010
ISSN
1748-0221
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