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dc.contributor.authorGordillo Vázquez, Francisco J.-
dc.contributor.authorPerea, Ángel-
dc.contributor.authorMacKierman, A. P.-
dc.contributor.authorAfonso, Carmen N.-
dc.identifier.citationApplied Physics Letters, 86 (18) : 181501 (2005)es_ES
dc.description3 pags. ; 4 figs.es_ES
dc.description.abstractOptical emission spectroscopy is used to investigate the spatial evolution of the electron temperature (Te) and electron density (Ne) in the plasma generated by laser ablation in a vacuum of a wide-band-gap material, such as LiF, with a pulsed 193 nm excimer laser operating at a fluence of 1.5 J cm⁻² close to the threshold. It is found that, whereas Ne (in the range of 10¹⁶ cm⁻³) decreases by a factor of 2 as the distance to the target increases, Te exhibits a sharp decrease (from 1.85 eV to 0.66 eV) between 1 and 2 mm from the target and it remains practically constant for longer distances from the target. These results provide direct measurements of the electron temperature and density during nanosecond laser ablation of LiF.es_ES
dc.description.sponsorshipThis work was partially funded by CICYT sSpaind, under Project No. TIC2002-03235. One of the authors sA.P.M.d acknowledges the E. U. for financial support from a Marie Curie Host Fellowship allowing a training period of 9 months at the Instituto de Óptica (CSIC) in Madrid sLASYNTHASS Project, Ref. No. HPMT-CT-2000-00064d.es_ES
dc.publisherAmerican Institute of Physicses_ES
dc.subject[PACS] Plasma propertieses_ES
dc.subject[PACS] Optical (ultraviolet, visible, infrared) measurementses_ES
dc.subject[PACS] Laser ablationes_ES
dc.subject[PACS] Plasma production and heating by laser beams (laser-foil, laser-cluster, etc.)es_ES
dc.titleElectronic temperature and density of the plasma produced by nanosecond ultraviolet laser ablation of LiFes_ES
dc.description.peerreviewedPeer reviewedes_ES
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