Chin. Phys. Lett.  2010, Vol. 27 Issue (5): 053701    DOI: 10.1088/0256-307X/27/5/053701
ATOMIC AND MOLECULAR PHYSICS |
Ionization Detection of Ultracold Ground State Cesium Molecules
JI Zhong-Hua, WU Ji-Zhou, MA Jie, FENG Zhi-Gang, ZHANG Lin-Jie, ZHAO Yan-Ting, WANG Li-Rong, XIAO Lian-Tuan, JIA Suo-Tang
State Key Laboratory of Quantum Optics and Quantum Optics Devices, College of Physics and Electronic Engineering, Shanxi University, Taiyuan 030006
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JI Zhong-Hua, WU Ji-Zhou, MA Jie et al  2010 Chin. Phys. Lett. 27 053701
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Abstract Photoassociation of ultracold atoms is an important method for producing stable ultracold molecules with extensive applications. Ion spectroscopy technique, which has higher sensitivity compared with trap loss spectroscopy and fragment spectroscopy, plays an important pole in the research of photoassociation spectroscopy. Based on ion spectroscopy technique, a complete experimental system is employed to produce and detect the ultracold ground state molecules, including the equipment of photoionization and time-of-fight mass spectroscopy. Ultracold ground state cesium molecules are demonstrated by the ionization detection technique. The number of the ground-state molecules produced in our MOT is measured. In addition, the relationship of the time interval of the cesium atom ion and the cesium molecular ion to the metal grid voltage is studied for the optimization of the experimental parameters.
Keywords: 37.10.Mn      34.80.Gs      79.70.+q     
Received: 11 August 2009      Published: 23 April 2010
PACS:  37.10.Mn (Slowing and cooling of molecules)  
  34.80.Gs (Molecular excitation and ionization)  
  79.70.+q (Field emission, ionization, evaporation, and desorption)  
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https://cpl.iphy.ac.cn/10.1088/0256-307X/27/5/053701       OR      https://cpl.iphy.ac.cn/Y2010/V27/I5/053701
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JI Zhong-Hua
WU Ji-Zhou
MA Jie
FENG Zhi-Gang
ZHANG Lin-Jie
ZHAO Yan-Ting
WANG Li-Rong
XIAO Lian-Tuan
JIA Suo-Tang
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