Performance evaluation of calcium atom beam vacuum system

Lu Zhang; Qingwen Xiao; Xing Chen; Jun Ge; Xiaobo Xue

doi:10.1117/12.2585357

2 December 2020 Performance evaluation of calcium atom beam vacuum system

Lu Zhang, Qingwen Xiao, Xing Chen, Jun Ge, Xiaobo Xue

Author Affiliations +

Proceedings Volume 11717, 24th National Laser Conference & Fifteenth National Conference on Laser Technology and Optoelectronics; 117170V (2020) https://doi.org/10.1117/12.2585357
Event: 24th National Laser Conference & Fifteenth National Conference on Laser Technology and Optoelectronics, 2020, Shanghai, China

Abstract

Optical clocks have become a very important tool of investigating the characteristics of atoms or ions, for the state-of-art instability and uncertainty. Increasing the running time of an optical atomic clock is one critical issue that scientists are still working on. In this paper we report the improvement of the atomic chamber of a calcium beam optical clock. By using a combination of microtubes as the nozzle, we achieved a very high atomic flux with small divergence. The resonant atomic flux is about 1×10¹² to 10¹³ per second and the divergence is smaller than 30mrad. The experimental results show that the system is reasonable in design and meets the technical indicators.

Citation Download Citation

Lu Zhang, Qingwen Xiao, Xing Chen, Jun Ge, and Xiaobo Xue "Performance evaluation of calcium atom beam vacuum system", Proc. SPIE 11717, 24th National Laser Conference & Fifteenth National Conference on Laser Technology and Optoelectronics, 117170V (2 December 2020); https://doi.org/10.1117/12.2585357

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