Quantum-state selection, alignment, and orientation of large molecules using static electric and laser fields
Quantum-state selection, alignment, and orientation of large molecules using static electric and laser fields
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DOI：
10.1063/1.3194287
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发表时间：
2009-08-14
影响因子：
4.4
通讯作者：
Stapelfeldt, Henrik
中科院分区：
文献类型：
--
作者：
Filsinger, Frank;Kuepper, Jochen;Stapelfeldt, Henrik
利用非均匀电场偏转极性分子的超声束。偏转的量子态选择性用于根据分子的量子态在空间上分离分子。的偏转和所获得的量子态选择的详细分析。由空间光束分布确定了分子束的转动温度，均约为1K。当使用状态选择样品时，碘苯分子的激光诱导排列（>=0.972）和取向的程度是前所未有的。这种状态选择和定向的分子为化学和物理学中的许多新实验提供了独特的可能性。
Supersonic beams of polar molecules are deflected using inhomogeneous electric fields. The quantum-state selectivity of the deflection is used to spatially separate molecules according to their quantum state. A detailed analysis of the deflection and the obtained quantum-state selection is presented. The rotational temperatures of the molecular beams are determined from the spatial beam profiles and are all approximately 1 K. Unprecedented degrees of laser-induced alignment (>=0.972) and orientation of iodobenzene molecules are demonstrated when the state-selected samples are used. Such state-selected and oriented molecules provide unique possibilities for many novel experiments in chemistry and physics.