Dependence of the ^(85)Rb coherent population trapping resonance characteristic on the pressure of N_2 buffer gas  

作　　者：屈苏平 张奕 顾思洪 

机构地区：[1]Key Laboratory of Atomic Frequency Standards,Wuhan Institute of Physics and Mathematics,Chinese Academy of Sciences

出　　处：《Chinese Physics B》2013年第9期686-689,共4页中国物理B（英文版）

基　　金：supported by the National Natural Science Foundation of China (Grant No. 10927403)

摘　　要：In order to exploit its potential applications, we experimentally study the dependence of ^85 Rb-based coherent population trapping （CPTi 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 importmlt 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.In order to exploit its potential applications, we experimentally study the dependence of ^85 Rb-based coherent population trapping （CPTi 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 importmlt 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 

分 类 号：TP211.4[自动化与计算机技术—检测技术与自动化装置]