The effect of the direct current electric field on the dynamics of the ultracold plasma

作     者：Syed ZAHEERUDDIN Yufan LI Dongmei ZHAO Xinwen MA Jie YANG Syed ZAHEERUDDIN;李煜璠;赵冬梅;马新文;杨杰

作者机构：Institute of Modern Physics Chinese Academy of Sciences Lanzhou 730000 People' s Republic of China University of Chinese Academy of Sciences Beijing 100049 People's Republic of China 

出 版 物：《Plasma Science and Technology》 (等离子体科学和技术（英文版）)

年 卷 期：2018年第20卷第8期

页      面：6-10页

核心收录：

学科分类：07[理学] 0805[工学-材料科学与工程（可授工学、理学学位）] 070204[理学-等离子体物理] 0702[理学-物理学] 

基　　金：supported by the National Key R&D Program of China(Grant No.2017YFA0402300) National Natural Science Foundation of China(Grant No.11404346) the Strategic Priority Research Program of the Chinese Academy of Sciences(Grant No.XDB21030900) financial support of CAS-TWAS President’s Fellowship Program for International Ph D students 

主　　题：ultracold plasma magneto-optical trap photoionization Coulomb potential well model 

摘      要：We created an ultracold plasma by photoionizing the laser-cooled and trapped rubidium atoms in a magneto-optical trap. In the externally applied direct current（DC） electric field environment,the electrons which escape from the potential well of the ultracold plasma were detected for different numbers of the ions and initial kinetic energies of the electrons. The results are in good agreement with the calculations, based on the Coulomb potential well model, indicating that the external DC field is an effective tool to adjust the depth of potential well of the plasma, and it is possible to create an ultracold plasma in a controlled manner.