Time-resolved spatial distribution of plasma in the ablation of a Ba0.6Sr0.4TiO3 target by 25 ns KrF ultraviolet laser

Abstract : We performed radially and longitudinally time-resolved plasma analysis during pulsed laser deposition of Ba0.6Sr0.4TiO3 thin films. The plasma is shown to be optically thick and strongly non-uniform during the early expansion phase and the resonance line Ba II (455.4 nm) is strongly self-reversed during this time. Plasma temperature and electron density were obtained by comparing experimental emission spectra with the spectral radiance computed for a non-uniform plasma in local thermal equilibrium. (C) 2014 AIP Publishing LLC.
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Submitted on : Friday, December 16, 2016 - 5:40:38 PM
Last modification on : Monday, July 8, 2019 - 11:40:05 AM

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Jean-François Lagrange, Jörg Hermann, Jérôme Wolfman, Olivier Motret. Time-resolved spatial distribution of plasma in the ablation of a Ba0.6Sr0.4TiO3 target by 25 ns KrF ultraviolet laser. Journal of Applied Physics, American Institute of Physics, 2014, 116 (13), ⟨10.1063/1.4897223⟩. ⟨hal-01418548⟩

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