Study of a colliding laser-produced plasma by analysis of time and space-resolved image spectra
Luna, H. and Kavanagh, Kevin D. and Costello, John T. (2007) Study of a colliding laser-produced plasma by analysis of time and space-resolved image spectra. Journal of Applied Physics, 101 (3). ISSN 0021-8979
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The interaction of two counter-propagating laser-produced plasmas was studied using simultaneous
imaging and spectroscopic techniques. Spectrally-filtered time-gated ICCD imaging was used
to obtain information about the spatial dynamics and temporal evolution of the collision process.
While, time-resolved imaging spectroscopy was used to determine the spatial and temporal distributions
of electron temperature and density within the interaction region. We examine specifically
the interaction of plasmas whose parameters match those typically used in pulsed laser deposition
of thin films. These low temperature plasmas are highly collisional leading to the creation of a
pronounced stagnation layer in the interaction region.
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