Journal ArticleDOI
Thomson Scattering as a Diagnostic of Atmospheric Pressure Discharges
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TLDR
In this paper, a nonlinear method bearing the same relationship to Thomson scattering as CARS does to linear Raman spectroscopy is discussed, and its properties are compared to the more common linear Thomson technique.Abstract:
Thomson scattering is reviewed as a diagnostic technique for the determination of electron energy distributions and concentrations in a plasma. Both theoretical and experimental aspects are considered, and scattering spectra which would be expected for high voltage spark discharges and inductively coupled plasmas at atmospheric pressure are computed. A nonlinear method bearing the same relationship to Thomson scattering as CARS does to linear Raman spectroscopy is mentioned, and its properties are compared to the more common linear Thomson technique. Related plasma diagnostics involving high power laser scattering are also discussed.read more
Citations
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Journal ArticleDOI
Fundamental studies of mixed-gas inductively coupled plasmas
TL;DR: In this paper, the effects of adding foreign gases to the central-gas flow or the intermediate gas flow of an argon inductively coupled plasma (Ar ICP) are examined.
Journal ArticleDOI
Thomson scattering from analytical plasmas
Kelly A. Warner,Gary M. Hieftje +1 more
TL;DR: A review of the history and theory of Thomson scattering in analytical plasmas can be found in this article, where the authors discuss the instrumental details that must be considered in a Thomson scattering experiment, and summarize the results of studies in which the technique has been applied to the characterization of analytical plasma.
Journal ArticleDOI
Saha-Boltzmann Statistics for Determination of Electron Temperature and Density in Spark Discharges Using an Echelle/CCD System
TL;DR: In this paper, a custom echelle/CCD spectrometer system was employed for equilibrium and nonequilibrium excitation measurements in the highvoltage spark discharge, and the dependence of argon excitation on sample matrix was also explored.
Journal ArticleDOI
Non-thermal features of atmospheric-pressure argon and helium microwave-induced plasmas observed by laser-light Thomson scattering and Rayleigh scattering
TL;DR: In this paper, the authors measured the Thomson-light Thomson scattering and Rayleigh scattering from a microwave-induced plasma sustained at atmospheric pressure, using both argon and helium as a support gas.
References
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Journal ArticleDOI
Transport phenomena in a completely ionized gas
Lyman Spitzer,Richard Harm +1 more
TL;DR: In this paper, the effect of mutual electron encounters is considered as a problem of diffusion in velocity space, taking into account a term which previously had been neglected, and the appropriate integro-differential equations are then solved numerically.
Journal ArticleDOI
A review of the theory and application of coherent anti-Stokes Raman Spectroscopy (CARS)
TL;DR: Coherent anti-Stokes Raman spectroscopy (CARS) as mentioned in this paper is a relatively new kind of Raman Spectroscopy which is based on a nonlinear conversion of two laser beams into a coherent, laser-like Raman beam of high intensity in the anti-stokes region.