Theoretical simulation of 87Rb absorption spectrum in a thermal cell  

作　　者：成红 张珊珊 辛培培 程元 刘红平 

机构地区：[1]State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, Wuhan 430071, China [2]University of Chinese Academy of Sciences, Beijing 100049, China

出　　处：《Chinese Physics B》2016年第11期254-259,共6页中国物理B（英文版）

基　　金：Project supported by the National Basic Research Program of China(Grant No.2013CB922003);the National Natural Science Foundation of China(Grant Nos.91421305,91121005,and 11174329)

摘　　要：In this paper,we present a theoretical simulation of 87Rb absorption spectrum in a thermal cm-cell which is adaptive to the experimental observation.In experiment,the coupling and probe beams are configured to copropagate but perpendicular polarized,making up to five velocity selective optical pumping（VSOP） absorption dips able to be identified.A A-type electromagnetically induced transparency（EIT） is also observed for each group of velocity-selected atoms.The spectrum by only sweeping the probe beam can be decomposed into a combination of Doppier-broadened background and three VSOP dips for each group of velocity-selected atoms,accompanied by an EIT peak.This proposed theoretical model can be used to simulate the spectrum adaptive to the experimental observation by the non-linear least-square fit method.The fit for the high quality of experimental observation can determine valuable transition parameters such as decaying rates and coupling beam power accurately.In this paper,we present a theoretical simulation of 87Rb absorption spectrum in a thermal cm-cell which is adaptive to the experimental observation.In experiment,the coupling and probe beams are configured to copropagate but perpendicular polarized,making up to five velocity selective optical pumping（VSOP） absorption dips able to be identified.A A-type electromagnetically induced transparency（EIT） is also observed for each group of velocity-selected atoms.The spectrum by only sweeping the probe beam can be decomposed into a combination of Doppier-broadened background and three VSOP dips for each group of velocity-selected atoms,accompanied by an EIT peak.This proposed theoretical model can be used to simulate the spectrum adaptive to the experimental observation by the non-linear least-square fit method.The fit for the high quality of experimental observation can determine valuable transition parameters such as decaying rates and coupling beam power accurately.

关 键 词：decomposed pumping valuable transparency perpendicular convergent polarized accompanied locked coherence 

分 类 号：O562[理学—原子与分子物理]