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Chin. Phys. B, 2008, Vol. 17(10): 3672-3677    DOI: 10.1088/1674-1056/17/10/024
ATOMIC AND MOLECULAR PHYSICS Prev   Next  

Deceleration of a continuous-wave (CW) molecular beam with a single quasi-CW semi-Gaussian laser beam

Yin Ya-Ling(尹亚玲), Xia Yong(夏勇), and Yin Jian-Ping(印建平)
State Key Laboratory of Precision Spectroscopy, Department of Physics, East China Normal University, Shanghai 200062, China
Abstract  We propose a promising scheme to decelerate a CW molecular beam by using a red-detuned quasi-cw semi-Gaussian laser beam (SGB). We study the dynamical process of the deceleration for a CW deuterated ammonia (ND$_{3})$ molecular beam by Monte-Carlo simulation method. Our study shows that we can obtain a ND$_{3}$ molecular beam with a relative average kinetic energy loss of about 10% and a relative output molecular number of more than 90% by using a single quasi-cw SGB with a power of 1.5kW and a maximum optical well depth of 7.33mK.
Keywords:  optical Stark deceleration      semi-Gaussian beam  
Received:  28 April 2008      Revised:  01 June 2008      Accepted manuscript online: 
PACS:  33.80.-b (Photon interactions with molecules)  
  42.60.Jf (Beam characteristics: profile, intensity, and power; spatial pattern formation)  
  33.15.Kr (Electric and magnetic moments (and derivatives), polarizability, and magnetic susceptibility)  
  31.15.-p (Calculations and mathematical techniques in atomic and molecular physics)  
Fund: Project supported by the National Natural Science Foundation of China (Grant Nos 10374029, 10434060 and 10674047), the National Key Basic Research and Development Program of China (Grant No 2006CB921604), the Key Basic Program of Shanghai Municipality (Grant No 07JC14017), the Program for Changjiang Scholar and Innovative Research Team, and Shanghai Leading Academic Discipline Project (Grant No B408).

Cite this article: 

Yin Ya-Ling(尹亚玲), Xia Yong(夏勇), and Yin Jian-Ping(印建平) Deceleration of a continuous-wave (CW) molecular beam with a single quasi-CW semi-Gaussian laser beam 2008 Chin. Phys. B 17 3672

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