Mañana, JUEVES, 24 DE ABRIL, el sistema se apagará debido a tareas habituales de mantenimiento a partir de las 9 de la mañana. Lamentamos las molestias.
Time-resolved spectroscopic diagnostic of laser-induced plasma on germanium targets
Entity
UAM. Departamento de Física AplicadaPublisher
American Institute of Physics.Date
2011-05-15Citation
10.1063/1.3590159
Journal of Applied Physics 109.10 (2011): 103304
ISSN
0021-8979 (print); 1089-7550 (online)DOI
10.1063/1.3590159Funded by
We gratefully acknowledge the support received in part by the DGICYT (Spain) Projects: MEC: CTQ2008-05393/ BQU and MEC: CTQ2010-15680/BQU for this research.Editor's Version
http://dx.doi.org/10.1063/1.3590159Subjects
Germanium; Elemental semiconductors; Time resolved spectroscopy; Carbon dioxide; Emission spectroscopy; FísicaNote
The following article appeared in Journal of Applied Physics 109.10 (2011): 103304 and may be found at http://scitation.aip.org/content/aip/journal/jap/109/10/10.1063/1.3590159Rights
© 2011 American Institute of Physics.Abstract
Time-resolved optical emission measurements have been made in laser-induced plasma plumes following CO2 pulsed-laser (10.591 µm, 64 ns and intensity from 0.27 to 4.9 GW cm-2) irradiation of germanium targets. The temporal behavior of Ge atoms and ionized excited species Ge3+, Ge2+, and Ge+ is reported. The results show a faster decay of the continuum emission and Ge3+, Ge2+ ionic species than in the case of Ge and neutral Ge atoms. The velocity distributions for Ge3+, Ge2+, Ge, and Ge species are obtained from time-of-flight measurements. Electron density in the laser-induced plasma was estimated from the analysis of spectral data at various times from the CO2 laser pulse incidence. From the intensity decay with the delay time for Ge, Ge2+, and Ge3+, we estimated the three-body electron-ion recombination rate constants for these species.
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Google Scholar:Camacho, Joaquín Juan
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Díaz, Luís Eduardo
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Poyato, Juan M. L.
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