The UV-visible spectroscopy of laser-produced aluminum plasmas

The optical emission spectra (180–760 nm) of plasmas produced by a flashlamp-pumped dye laser focused on an aluminum target have been recorded and analyzed. In the incident intensity range from near plasma threshold to 5×107 W/cm2 the electron temperature was calculated from the relative emission in...

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Bibliographic Details
Published in:Journal of applied physics 1987-05, Vol.61 (10), p.4771-4780
Main Authors: KNUDTSON, J. T, GREEN, W. B, SUTTON, D. G
Format: Article
Language:English
Subjects:
Exact sciences and technology
Physics
Physics of gases, plasmas and electric discharges
Physics of plasmas and electric discharges
Plasma properties
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Summary:The optical emission spectra (180–760 nm) of plasmas produced by a flashlamp-pumped dye laser focused on an aluminum target have been recorded and analyzed. In the incident intensity range from near plasma threshold to 5×107 W/cm2 the electron temperature was calculated from the relative emission intensity of Al(II) states (Te=8.0×103 K). The electron density was determined from Stark broadened linewidths of four Al(II) lines. Both the spatial and temporal dependence of the emission spectra were obtained providing a map of the electron density and temperature.
ISSN:0021-8979
1089-7550
DOI:10.1063/1.338815