Large-scale collisional energy transfer in laser-pumped metastable Ca atoms: Excitation of resonance states of Ca II
作者： M. A. Khan , M. A. Gondal , M. H. Rais
DOI: 10.1007/BF01081540
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摘要: We report the first experimental observation of excitation 4p2P3/2, 1/2 resonance states Ca II (located at 74 720.4 and 497.5 cm−1 above ground state I) following pulsed-laser pumping 4s21SO−4s4p3P1 intercombination transition I (Eex = 15 210 cm−1). Large scale collisional transfer energy between laser-excited atoms is believed to be responsible for this. This possibly because sufficient time available (τrad 4s4p3P1 approximately 350 µs) collisions build such a high level excitation. Some interesting additional features fluorescence spectra laser-pumped vapor, as temperature dependence intensities evolution in some selected states, are also presented.
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