Cadmium (5 1 P 1 → 5 3 P J) excitation transfer and 5 3 P J intramultiplet relaxation by collisions with molecular gases |
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Authors: | H.-P. Didra M. Baumann |
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Affiliation: | 15. Physikalisches Institut, Universit?t Tübingen, Auf der Morgenstelle 14, D-72076, Tübingen, Germany
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Abstract: | Collisional 5 1 P 1 → 5 3 P J spin changing fine structure transfer as well as 5 3 P J intramultiplet mixing induced by various molecular gases (H2, D2, N2, CO, CO2, CH4, C2H6, C3H8, C2H4) have been investigated using a combined method of fluorescence and absorption spectroscopy. After pulsed optical excitation of the Cd(5 1 P 1) level the time dependence of the population densities has been measured both for the Cd(5 1 P 1) level as well as the three collisionally populated Cd(5 3 P J) levels. By analyzing the signal curves at different molecular gas pressures not only the ratios of 5 1 P 1 → 5 3 P J population transfer cross sections but also the Cd(5 1 P J), Cd(5 3 P J) quenching cross sections and the Cd(5 3 P J) intramultiplet population transfer cross sections have been obtained. |
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