| ATOMIC AND MOLECULAR PHYSICS |
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Weak Electrostatic Field Orientation of Cold KRb Molecules Enhanced by a Shaped Laser Pulse |
| HUANG Yun-Xia1,2, XU Shu-Wu1,2, YANG Xiao-Hua1,2** |
1School of Science, Nantong University, Nantong 226000
2State Key Laboratory of Precision Spectroscopy, East China Normal University, Shanghai 200062
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| Cite this article: |
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HUANG Yun-Xia, XU Shu-Wu, YANG Xiao-Hua 2013 Chin. Phys. Lett. 30 083701 |
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Abstract We theoretically investigate the orientation of the cold KRb molecules in a weak electrostatic field assisted by a shaped laser pulse. The results show that the slow turn-on and rapid turn-off laser pulse can enhance the molecular orientation of KRb significantly, and a high degree of molecular orientation of more than 0.9 can be obtained when the electrostatic field is as low as 3 kV/cm. In addition, the influences of the electrostatic field strength and the parameters of the laser pulse are studied in detail.
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Received: 28 April 2013
Published: 21 November 2013
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| PACS: |
37.90.+j
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(Other topics in mechanical control of atoms, molecules, and ions)
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33.57.+c
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(Magneto-optical and electro-optical spectra and effects)
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42.50.Hz
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(Strong-field excitation of optical transitions in quantum systems; multiphoton processes; dynamic Stark shift)
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