| ATOMIC AND MOLECULAR PHYSICS |
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Coherent Control of Molecular Orientation by a Terahertz Few-Cycle Laser Pulse |
| QIN Chao-Chao1**, LIU Yu-Zhu2, ZHANG Xian-Zhou1, LIU Yu-Fang1 |
1Department of Physics, Henan Normal University, Xinxiang 453007
2College of Physics and Opto-electronics Engineering, Nanjing University of Information Science & Technology, Nanjing 210044
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| Cite this article: |
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QIN Chao-Chao, LIU Yu-Zhu, ZHANG Xian-Zhou et al 2013 Chin. Phys. Lett. 30 023301 |
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Abstract The coherent control of molecular orientation by a terahertz few-cycle laser pulse is theoretically studied. It is demonstrated that the field-free molecular orientation results from the interference contributions between the odd and even rotational wave packet, and therefore the constructive and destructive interferences lead to the observation of the positive and negative orientations, corresponding to the positive and negative degrees. Furthermore, the enhancement or suppression of the molecular orientation can be coherently manipulated by precisely controlling the carrier-envelope phase of the terahertz few-cycle pulse.
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Received: 20 November 2012
Published: 02 March 2013
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| PACS: |
33.80.-b
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(Photon interactions with molecules)
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37.10.Vz
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(Mechanical effects of light on atoms, molecules, and ions)
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33.80.Rv
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(Multiphoton ionization and excitation to highly excited states (e.g., Rydberg states))
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