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Chin. Phys. B, 2015, Vol. 24(11): 113702    DOI: 10.1088/1674-1056/24/11/113702

Photostop of iodine atoms from electrically oriented ICl molecules

Bao Da-Xiao, Deng Lian-Zhong, Xu Liang, Yin Jian-Ping
State Key Laboratory of Precision Spectroscopy, East China Normal University, Shanghai 200062, China
Abstract  The dynamics of photostopping iodine atoms from electrically oriented ICl molecules was numerically studied based on their orientational probability distribution functions. Velocity distributions of the iodine atoms and their production rates were investigated for orienting electrical fields of various intensities. For the ICl precursor beams with an initial rotational temperature of ~1 K, the production of the iodine atoms near zero speed will be improved by about ~5 times when an orienting electrical field of ~200 kV/cm is present. A production rate of ~0.5‰ is obtained for photostopped iodine atoms with speeds less than 10 m/s, which are suitable for magnetic trapping. The electrical orientation of ICl precursors and magnetic trapping of photostopped iodine atoms in situ can be conveniently realized with a pair of charged ring magnets. With the maximal value of the trapping field being ~0.28 T, the largest trapping speed is ~7.0 m/s for the iodine atom.
Keywords:  cold atoms      photodissociation      molecular orientation      magnetic trapping     
Received:  07 May 2015      Published:  05 November 2015
PACS:  37.10.De (Atom cooling methods) (Photodissociation)  
  37.90.+j (Other topics in mechanical control of atoms, molecules, and ions)  
  37.10.Gh (Atom traps and guides)  
Fund: Project supported by the National Natural Science Foundation of China (Grant Nos. 11034002, 61205198, and 11274114) and the National Key Basic Research and Development Program of China (Grant No. 2011CB921602).
Corresponding Authors:  Deng Lian-Zhong     E-mail:

Cite this article: 

Bao Da-Xiao, Deng Lian-Zhong, Xu Liang, Yin Jian-Ping Photostop of iodine atoms from electrically oriented ICl molecules 2015 Chin. Phys. B 24 113702

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