Abstract
Mixtures of rare gases with alkali-metal vapour were excited by a high power argon ion beam in a windowless gas target system. Narrow emission continua were observed in the vacuum ultraviolet region between 60 and 200 nm. The observed emission was assigned to the decay of a new class of excited ionic molecules Rg+ A formed by the combination of a rare gas ion Rg+ with an alkali atom A. These excimer-like ions are of great interest for possible short-wavelength lasers, because the ground state consisting of a rare gas atom and an alkali ion is only weakly bound. The observed decay energies and fine structure splittings agree well with the prediction of calculations. A summary of previous results is presented.
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Supported by the German Government Department for Research and Technology (BMFT), Bonn, Germany.
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Hammer, J.W., Petkau, K., Griegel, T. et al. New possible laser media in the UV and XUY in high current heavy ion beam induced plasmas. Hyperfine Interact 88, 151–156 (1994). https://doi.org/10.1007/BF02068713
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DOI: https://doi.org/10.1007/BF02068713