Study of heating effects during Thomson scattering in laser induced plasma in air - Archive ouverte HAL
Article Dans Une Revue Contributions to Plasma Physics Année : 2011

Study of heating effects during Thomson scattering in laser induced plasma in air

Résumé

The laser induced plasma in air produced by 6 ns, 532 nm Nd:YAG pulses with 25 mJ energy was studied using the Thomson scattering method and plasma imaging techniques. Thomson scattering spectra were registered at delay times ranging from 150 ns to 1 μs after the breakdown pulses. The electron density and temperature, as determined in the core of the plasma plume, were found to decrease from 7.4×1017 cm−3 to 1.0×1017 cm−3 and from 101 000 K to 22 700 K, respectively. These electron temperatures were found to result partially from plasma heating. This effect has been observed between the beginning and the end of the probe (Thomson) pulse.

Dates et versions

hal-00496294 , version 1 (30-06-2010)

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Citer

Grégoire Travaillé, Agata Mendys, Krzysztof Dzierzega, Stéphane Pellerin, Bartlomej Pokrzywka, et al.. Study of heating effects during Thomson scattering in laser induced plasma in air. Contributions to Plasma Physics, 2011, 51 (2-3), pp.171-175. ⟨10.1002/ctpp.201000060⟩. ⟨hal-00496294⟩
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