Theoretical study of determining orientation and alignment of symmetric top molecule using laser-induced fluorescence

被引:0
作者
Shulin Cong
Keli Han
Nanquan Lou
机构
[1] Chinese Academy of Sciences,State Key Laboratory of Molecular Reaction Dynamics, Dalian Institute of Chemical Physics
[2] Dalian University of Technology,Physics Department
来源
Science in China Series B: Chemistry | 2000年 / 43卷
关键词
laser-induced fluorescence; orientation; alignment;
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学科分类号
摘要
General expressions used for extracting the orientation and alignment parameters of a symmetric top molecule from laser-induced fluorescence (LIF) intensity are derived by employing the density matrix approach. The molecular orientation and alignment are described by molecular state multipoles. Excitation and detection are circularly and linearly polarized lights, respectively. In general cases, the LIF intensity is a complex function of the initial molecular state multipoles, the dynamic factors and the excitation-detection geometrical factors. It contains a population, ten orientation and fourteen alignment multipoles. The problem of how to extract the initial molecular state multipoles from the resolved LIF intensity is discussed.
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页码:485 / 495
页数:10
相关论文
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