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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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Plasma density measurements using chirped pulse broad-band Raman amplification

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Title
Plasma density measurements using chirped pulse broad-band Raman amplification
Author
Vieux, G.Ersfeld, B.Farmer, J.P.Hur, Min SupIssac, R.C.Jaroszynski, D.A.
Keywords
high-speed optical techniques; plasma density; plasma diagnostics; stimulated Raman scattering
Issue Date
201309
Publisher
AMER INST PHYSICS
Citation
APPLIED PHYSICS LETTERS, v.103, no.12, pp.1 - 4
Abstract
Stimulated Raman backscattering is used as a non-destructive method to determine the density of plasma media at localized positions in space and time. By colliding two counter-propagating, ultra-short laser pulses with a spectral bandwidth larger than twice the plasma frequency, amplification occurs at the Stokes wavelengths, which results in regions of gain and loss separated by twice the plasma frequency, from which the plasma density can be deduced. By varying the relative delay between the laser pulses, and therefore the position and timing of the interaction, the spatio-temporal distribution of the plasma density can be mapped out.
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DOI
http://dx.doi.org/10.1063/1.4821581
ISSN
0003-6951
Appears in Collections:
SNS_Journal Papers
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