碱金属气室参数测试教学实验平台搭建  

Construction of experimental platform for measuring parameters of alkali-metal vapor cell

作　　者：韩邦成[1,2] 陆吉玺[2] 张少文 翟跃阳 胡朝晖[1] HAN Bangcheng;LU Jixi;ZHANG Shaowen;ZHAI Yueyang;HU Zhaohui(School of Instrumentation and Optoelectronics Engineering,Beihang University,Beijing 100191,China;Research Institute for Frontier Science,Beihang University,Beijing 100191,China)

机构地区：[1]北京航空航天大学仪器科学与光电工程学院,北京100191 [2]北京航空航天大学前沿科学技术创新研究院,北京100191

出　　处：《实验技术与管理》2022年第1期56-58,97,共4页Experimental Technology and Management

基　　金：北京航空航天大学研究生教育与发展研究专项基金;北京航空航天大学教学改革项目。

摘　　要：碱金属气室是原子磁强计、原子陀螺仪、原子钟等量子传感器的核心敏感元件,其内部的碱金属原子蒸汽通过与激光、磁场等相互作用,实现对物理量的高精度测量。实验室搭建了针对一类高温、高压碱金属气室的参数测试教学实验平台,该平台通过测量激光吸收光谱,获得气室内部缓冲气体的压强以及碱金属原子蒸汽的原子数密度。该平台使学生能够直接观察到激光与原子的相互作用,有助于学生加深对碱金属气室的理解以及培养学生的实验动手能力,同时也为研究生和本科生的相关课程提供了有力支撑。The alkali-metal vapor cell is the key sensitive element of quantum sensors such as atomic magnetometers,atomic gyroscopes,and atomic clocks.The alkali-metal vapor in the cell interacts with laser and magnetic field to achieve high-precision measurement of some physical quantities.A teaching experiment platform for parameter testing of alkali-metal vapor cells with high temperature and high pressure is constructed.According to the measured laser absorption spectrum,the pressure of the buffer gas and the density of alkali-metal atoms inside the vapor cell can be obtained.This experimental platform help students to directly observe the interaction between laser and atoms,which helps them to understand the alkali-metal vapor cell,cultivate their experimental hands-on ability and provides support for graduate and undergraduate related courses.

关 键 词：量子传感器 碱金属气室 激光吸收光谱 压力展宽 

分 类 号：TN249[电子电信—物理电子学]