Journal
JOURNAL OF CHEMICAL PHYSICS
Volume 146, Issue 24, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.4986954
Keywords
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Funding
- Helmholtz Association
- Deutsche Forschungsgemeinschaft (DFG) through the excellence cluster The Hamburg Center for Ultrafast Imaging-Structure, Dynamics and Control of Matter at the Atomic Scale (CUI) [EXC1074]
- European Research Council through the Consolidator Grant COMOTION [ERC-Kupper-614507]
- Spanish Project [FIS2014-54497-P]
- Andalusian research group [FQM-207, P11-FQM-7276]
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We present a theoretical study of the mixed-field orientation of molecules without rotational symmetry. The time-dependent one-dimensional and three-dimensional orientation of a thermal ensemble of 6-chloropyridazine-3-carbonitrile molecules in combined linearly or elliptically polarized laser fields and tilted dc electric fields is computed. The results are in good agreement with recent experimental results of one-dimensional orientation for weak dc electric fields [J. L. Hansen, J. Chem. Phys. 139, 234313 (2013)]. Moreover, they predict that using elliptically polarized laser fields or strong dc fields, three-dimensional orientation is obtained. The field-dressed dynamics of excited rotational states is characterized by highly non-adiabatic effects. We analyze the sources of these non-adiabatic effects and investigate their impact on the mixed-field orientation for different field configurations in mixed-field- orientation experiments. Published by AIP Publishing.
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