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Observation of the K2 43Δg state by cw perturbation-facilitated optical–optical double resonance spectroscopy

✍ Scribed by J. Magnes; E. Ahmed; C. Goldberg; A.Marjatta Lyyra; Sylvie Magnier; Monique Aubert-Frécon; Yaoming Liu; Li Li

Publisher
Elsevier Science
Year
2003
Tongue
English
Weight
218 KB
Volume
221
Category
Article
ISSN
0022-2852

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✦ Synopsis

This paper reports for the first time both, an experimental observation and theoretical calculations of the K 2 4 3 D g state. For the experiment we used cw perturbation-facilitated optical-optical double resonance (PFOODR) spectroscopy. A single mode Tisapphire laser and a dye laser served as the pump and probe lasers respectively. A total of 55 PFOODR signals have been assigned to the 4 3 D g b 3 P u transitions. Absolute vibrational numbering was determined by using quantum defect analysis combined with comparing observed intensities with calculated Franck-Condon factors (FCF). For the former we used known parameters from the 2 3 D g state since the 2 3 D g and the 4 3 D g states belong to the same Rydberg series. We report here our experimental and calculated spectroscopic constants, the corresponding RKR potential energy curve, the Franck-Condon table for the 4 3 D g $ b 3 P u system, as well as a comparison with the theoretical potential energy curve. The T e value is found to be 28408.938(52) cm À1 .

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