Dependence of the 85Rb coherent population trapping resonance characteristic on the pressure of N2 buffer gas

doi:10.1088/1674-1056/22/9/099501

中国物理B ›› 2013, Vol. 22 ›› Issue (9): 99501-099501.doi: 10.1088/1674-1056/22/9/099501

• GEOPHYSICS, ASTRONOMY, AND ASTROPHYSICS • 上一篇

Dependence of the ⁸⁵Rb coherent population trapping resonance characteristic on the pressure of N₂ buffer gas

屈苏平, 张奕, 顾思洪

Key Laboratory of Atomic Frequency Standards, Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, Wuhan 430071, China

收稿日期:2012-12-24 修回日期:2013-03-05 出版日期:2013-07-26 发布日期:2013-07-26
基金资助:
Project supported by the National Natural Science Foundation of China (Grant No. 10927403).

Dependence of the ⁸⁵Rb coherent population trapping resonance characteristic on the pressure of N₂ buffer gas

Qu Su-Ping (屈苏平), Zhang Yi (张奕), Gu Si-Hong (顾思洪)

Key Laboratory of Atomic Frequency Standards, Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, Wuhan 430071, China

Received:2012-12-24 Revised:2013-03-05 Online:2013-07-26 Published:2013-07-26
Contact: Zhang Yi E-mail:zhangyi@wipm.ac.cn
Supported by:
Project supported by the National Natural Science Foundation of China (Grant No. 10927403).

摘要/Abstract

摘要： In order to exploit its potential applications, we experimentally study the dependence of ⁸⁵Rb-based coherent population trapping (CPT) resonance on N₂ buffer gas with 6 vapor cells filled with natural rubidium and N₂. The experiments are carried out at different pressures and temperatures, and the results reveal that higher cell temperature makes the resonance more sensitive to N₂ pressure. Thus, it is important to choose a proper buffer gas pressure at a given cell temperature. This work provides valuable data for the application of ⁸⁵Rb CPT resonance with a buffer gas of N₂.

关键词: coherent population trapping (CPT), buffer gas, atomic clock

Abstract: In order to exploit its potential applications, we experimentally study the dependence of ⁸⁵Rb-based coherent population trapping (CPT) resonance on N₂ buffer gas with 6 vapor cells filled with natural rubidium and N₂. The experiments are carried out at different pressures and temperatures, and the results reveal that higher cell temperature makes the resonance more sensitive to N₂ pressure. Thus, it is important to choose a proper buffer gas pressure at a given cell temperature. This work provides valuable data for the application of ⁸⁵Rb CPT resonance with a buffer gas of N₂.

Key words: coherent population trapping (CPT), buffer gas, atomic clock

中图分类号: (Auxiliary and recording instruments; clocks and frequency standards)

95.55.Sh

34.80.Bm (Elastic scattering) 32.70.Jz (Line shapes, widths, and shifts)

屈苏平, 张奕, 顾思洪. Dependence of the ⁸⁵Rb coherent population trapping resonance characteristic on the pressure of N₂ buffer gas[J]. 中国物理B, 2013, 22(9): 99501-099501.

Qu Su-Ping (屈苏平), Zhang Yi (张奕), Gu Si-Hong (顾思洪). Dependence of the ⁸⁵Rb coherent population trapping resonance characteristic on the pressure of N₂ buffer gas[J]. Chin. Phys. B, 2013, 22(9): 99501-099501.

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Dependence of the ⁸⁵Rb coherent population trapping resonance characteristic on the pressure of N₂ buffer gas

Dependence of the ⁸⁵Rb coherent population trapping resonance characteristic on the pressure of N₂ buffer gas

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