Femtosecond laser spectroscopy on the vibrational wave packet dynamics of the A(1)Sigma(+) state of NaK

被引：33
|
作者：
Berg, LE
Beutter, M
Hansson, T
机构：
[1] Physics Department I, Royal Institute of Technology
来源：
CHEMICAL PHYSICS LETTERS | 1996年 / 253卷 / 3-4期
关键词：
D O I：
10.1016/0009-2614(96)00206-0
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
The vibrational wave packet dynamics of a heteronuclear diatomic alkali molecule in an excited state, the A (1) Sigma(+) state of gaseous NaK, has been measured for the first time. At lambda(pump) = 790 nm, a wave packet oscillation period of 442 fs and dephasing within 10 ps has been observed. This dynamics has been analysed by calculation of Franck-Condon factors and difference potentials. It is from this seen that initially the pump pulse prepares a wave packet at the inner turning point of the A-state. The wave packet then evolves in time and is probed at the outer turning point by a transition to the E-state with subsequent fluorescence detection.
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页码：327 / 332
页数：6
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