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Laser spectroscopy on the A0+-X1Σ+ transition of T1I

✍ Scribed by J. Kieckhäfer; H. Knöckel; E. Tiemann

Publisher
Elsevier Science
Year
1989
Tongue
English
Weight
430 KB
Volume
160
Category
Article
ISSN
0009-2614

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✦ Synopsis

The first excited electronic state of TII was investigated by laser excitation and laser fluorescence spectroscopy. Almost completely resolved rotational tine structure was observed with the help of a collimated molecular beam and a single-mode cw dye laser. From the derived Dunham parameters Y/k a RKR potential for the excited state is calculated. The unusual shape of the potential energy curve can be understood as originating from an avoided crossing of the ionic ground-state potential and a nonbonding covalent state of the atomic asymptote (6~) 'P,,r (TI) + (5~)' 2P,,2(I).

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