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

Syed ZAHEERUDDIN; Yufan LI (李煜璠); Dongmei ZHAO (赵冬梅); Xinwen MA (马新文); Jie YANG (杨杰)

doi:10.1088/2058-6272/aac166

Plasma Science and Technology > 2018 > 20(8): 85001-085001. > DOI: 10.1088/2058-6272/aac166

Syed ZAHEERUDDIN, Yufan LI (李煜璠), Dongmei ZHAO (赵冬梅), Xinwen MA (马新文), Jie YANG (杨杰). The effect of the direct current electric field on the dynamics of the ultracold plasma[J]. Plasma Science and Technology, 2018, 20(8): 85001-085001. DOI: 10.1088/2058-6272/aac166

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

¹ Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, People’s Republic of China
² University of Chinese Academy of Sciences, Beijing 100049, People’s Republic of China

Funds: This work was supported by the National Key R&D Program of China (Grant No. 2017YFA0402300), National Natural Science Foundation of China (Grant No. 11404346), and the Strategic Priority Research Program of the Chinese Academy of Sciences (Grant No. XDB21030900).

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Received Date: March 13, 2018

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Abstract

Abstract

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.
- ultracold plasma,
- magneto-optical trap,
- photoionization,
- Coulomb potential well model

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References (35)

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