Open AccessAnalysis on the absorption curve asymmetry of electromagnetically induced transparency in Rb87 cold atoms
Author(s) -
Bai Jin-Hai,
Lu Xiao-Gang,
Xiangshui Miao,
Li-Ya Pei,
Meng Wang,
Gao Yan-Lei,
Ruquan Wang,
LingAn Wu,
Panming Fu,
Zhentao Zuo
Publication year - 2015
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.64.034206
Subject(s) - electromagnetically induced transparency , asymmetry , atomic physics , absorption (acoustics) , excited state , physics , coupling (piping) , raman scattering , raman spectroscopy , optics , materials science , quantum mechanics , metallurgy
The asymmetry of the absorption curve of electromagnetically induced transparency by a resonant coupling field in -type three-level systems for Rb87 cold atoms is investigated. We find that it is the other excited state, separated by an interval of 814 MHz, that induces this phenomenon. The primary cause of it is the stimulated Raman scattering. We also find that the ratio between the heights of the absorption peaks on the two sides of the transparency window is proportional to the intensity of the coupling beam. The theoretical result agrees well with the experimental data.