Laser Initiated Afterglow In A High Pressure K-Kr Mixture
We ionized potassium atoms in a K-Kr ([K] = 6 x 1014 cm-3: [Kr] = 2 x 1019 cm-3) mixture with a 120 μJ, 404 nm dye laser pulse in a stepwise absorption process and monitored the fluorescence spectra as a function of time. We saw a fast (≲20 ns) initial component due to electron excitation and a slow decay tail (≈10 μs) due to electron ion recombination. © 1978.
L. K. Lam and L. D. Schearer, "Laser Initiated Afterglow In A High Pressure K-Kr Mixture," Chemical Physics Letters, vol. 60, no. 1, pp. 130 - 134, Elsevier, Dec 1978.
The definitive version is available at https://doi.org/10.1016/0009-2614(78)85727-3
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15 Dec 1978