An Alternative Operation Scheme to Improve the Efficiency of a Stark Decelerator  

作　　者：Mei Du Dongdong Zhang Dajun Ding 杜美;张栋栋;丁大军(Institute of Atomic and Molecular Physics,Jilin University,Changchun 130012,China)

机构地区：[1]Institute of Atomic and Molecular Physics,Jilin University,Changchun 130012,China

出　　处：《Chinese Physics Letters》2021年第12期7-12,共6页中国物理快报（英文版）

基　　金：Supported by the National Key R&D Program of China(Grant No.2019YFA0307701);the Science Challenge Project(Grant No.TZ2018005);Jilin University。

摘　　要：A Stark decelerator can slow down polar molecules to very low velocities.When the velocities are very low,the number of cold molecules obtained is very small.In order to obtain a higher quantity of cold molecules,inspired by the work of Reens et al.[Phys.Rev.Res.2(2020)033095],we propose an alternative method of operating a Stark decelerator.Through the trajectory simulation of OH molecules in the decelerator,we find that the number of cold molecules can be greatly increased by one order of magnitude at both low and high final velocities on a Stark decelerator consisting of around 150 electrodes.This development is due to the improved longitudinal and the transverse focusing property provided by the new switching schemes and the high-voltage configurations on the decelerator unit.

关 键 词：STARK AL Operation 

分 类 号：O56[理学—原子与分子物理]