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Chin. Phys. B, 2015, Vol. 24(5): 053701    DOI: 10.1088/1674-1056/24/5/053701
ATOMIC AND MOLECULAR PHYSICS Prev   Next  

Cooling and trapping polar molecules in an electrostatic trap

Wang Zhen-Xia (王振霞), Gu Zhen-Xing (顾振兴), Deng Lian-Zhong (邓联忠), Yin Jian-Ping (印建平)
State Key Laboratory of Precision Spectroscopy, East China Normal University, Shanghai 200062, China
Abstract  

An electrostatic trap for polar molecules is proposed. Loading and trapping of polar molecules can be realized by applying different voltages to the two electrodes of the trap. For ND3 molecular beams centered at ~ 10 m/s, a high loading efficiency of ~ 67% can be obtained, as confirmed by our Monte Carlo simulations. The volume of our trap is as large as ~ 3.6 cm3, suitable for study of the adiabatic cooling of trapped molecules. Our simulations indicate that trapped ND3 molecules can be cooled from ~ 23.3 mK to 1.47 mK by reducing the trapping voltages on the electrodes from 50.0 kV to 1.00 kV.

Keywords:  trapping molecules      cooling molecules      Stark shift of molecules  
Received:  10 November 2014      Revised:  16 December 2014      Accepted manuscript online: 
PACS:  37.10.Pq (Trapping of molecules)  
  37.10.Mn (Slowing and cooling of molecules)  
  37.10.Vz (Mechanical effects of light on atoms, molecules, and ions)  
  37.20.+j (Atomic and molecular beam sources and techniques)  
Fund: 

Project supported by the National Natural Science Foundation of China (Grant Nos. 10674047, 10804031, 10904037, 10974055, 11034002, and 11274114), the National Key Basic Research and Development Program of China (Grant Nos. 2006CB921604 and 2011CB921602), the Basic Key Program of Shanghai Municipality, China (Grant No. 07JC14017), and the Shanghai Leading Academic Discipline Project, China (Grant No. B408).

Corresponding Authors:  Yin Jian-Ping     E-mail:  jpyin@phy.ecnu.edu.cn
About author:  37.10.Pq; 37.10.Mn; 37.10.Vz; 37.20.+j

Cite this article: 

Wang Zhen-Xia (王振霞), Gu Zhen-Xing (顾振兴), Deng Lian-Zhong (邓联忠), Yin Jian-Ping (印建平) Cooling and trapping polar molecules in an electrostatic trap 2015 Chin. Phys. B 24 053701

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