A versatile electrostatic trap with open optical access

作     者：Sheng-Qiang Li Jian-Ping Yin 李胜强;印建平

作者机构：School of New Energy and Electronic Engineering Yancheng Teachers University Yancheng 224007 China State Key Laboratory of Precision Spectroscopy East China Normal University Shanghai 200062 China 

出 版 物：《Frontiers of physics》 (物理学前沿（英文版）)

年 卷 期：2018年第13卷第2期

页      面：51-57页

核心收录：

学科分类：12[管理学] 1201[管理学-管理科学与工程(可授管理学、工学学位)] 0809[工学-电子科学与技术（可授工学、理学学位）] 08[工学] 

基　　金：This work was supported by the Young Scientists Fund of the National Natural Science Foundation of China (Grant No. 11504318) 

主　　题：atomic and molecular physics electrostatic trap cold polar molecules finite elementanalysis 

摘      要：A versatile electrostatic trap with open optical access for cold polar molecules in weak-field-seeking state is proposed in this paper. The trap is composed of a pair of disk electrodes and a hexapole. With the help of a finite element software, the spatial distribution of the electrostatic field is calculated. The results indicate that a three-dimensional closed electrostatic trap is formed. Taking NDa molecules as an example, the dynamic process of loading and trapping is simulated. The results show that when the velocity of the molecular beam is 10 m/s and the loading time is 0.9964 ms, the maximum loading efficiency reaches 94.25% and the temperature of the trapped molecules reaches about 30.3 inK. A single well can be split into two wells, which is of significant importance to the precision measurement and interference of matter waves. This scheme, in addition, can be further miniaturized to construct one-dimensional, two-dimensional, and three-dimensional spatial electrostatic lattices.