Title :
Thomson Scattering as a Diagnostic of Second-Harmonic Nd:YAG-Laser-Ablated Mg Plasma Plume
Author :
Nedanovska, E. ; Nersisyan, G. ; Lewis, C.L.S. ; Riley, D.
Author_Institution :
Centre for Plasma Phys., Queen´´s Univ. Belfast, Belfast, UK
Abstract :
Thomson scattering is one of the most powerful diagnostic tools for plasma characterization, and it has been applied to a variety of plasmas. It is a nonintrusive technique, and the interpretation of the signal is relatively simple. However, this method has not been widely applied to low-temperature laser-ablated plasmas. Raman satellites have been observed in the scattering spectrum from a Mg laser-ablated plasma, giving this diagnostic the potential to be also used in density quantification of metastable states in plasmas.
Keywords :
Thomson effect; laser ablation; magnesium; metastable states; neodymium; plasma density; plasma diagnostics; plasma light propagation; plasma temperature; solid lasers; yttrium compounds; Mg; Nd:YAG; Raman satellites; Thomson scattering; density quantification; low-temperature laser-ablated plasma; metastable states; nonintrusive technique; scattering spectrum; second-harmonic Nd:YAG-laser-ablated plasma plume; Laser ablation; Plasma temperature; Raman scattering; Satellites; Spatial resolution; Laser ablation; Raman scattering; plasma diagnostics;
Journal_Title :
Plasma Science, IEEE Transactions on
DOI :
10.1109/TPS.2011.2159247
