Spectroscopic Studies of a Laser-Produced Plasma in Helium
- 1 May 1969
- journal article
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 40 (6), 2549-2554
- https://doi.org/10.1063/1.1658030
Abstract
A highly ionized plasma was produced by laser-induced breakdown in helium at a pressure of 360 Torr. Line and continuum emission from the plasma were studied as a function of time and of position along the axis of the laser beam. Plasma parameters were then deduced from Stark widths, line-to-continuum, and line-to-line intensity ratios. The applicability of the various methods used to the case of a rapidly decaying laser-produced plasma is discussed. The decay of the plasma is analyzed and the observed decay coefficients are compared with theoretical calculations.Keywords
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