Relationship between electromagnetically-induced transparency and Autler–Townes splitting in a Doppler-broadened system  

作　　者：裴丽娅 牛金艳 王如泉 屈一至 左战春 吴令安 傅盘铭 

机构地区：[1]College of Material Sciences and Optoelectronic Technology,University of the Chinese Academy of Sciences [2]School of Mathematics,Physics and Biological Engineering,Inner Mongolia University of Science and Technology [3]Laboratory of Optical Physics,Beijing National Laboratory for Condensed Matter Physics,Institute of Physics,Chinese Academy of Sciences

出　　处：《Chinese Physics B》2015年第7期244-251,共8页中国物理B（英文版）

基　　金：Project supported by the National Natural Science Foundation of China(Grant Nos.11404330,11274376,61308011,and 11474347);the NSAF,China(Grant No.U1330117);the National Basic Research Program of China(Grant Nos.2013CB922002 and 2010CB922904);the China Postdoctoral Science Foundation(Grant No.119103S239)

摘　　要：We study the relationship between electromagnetically-induced transparency（EIT） and Autler–Townes（AT） splitting in a cascade three-level Doppler-broadened system. By comparing the absorption spectrum with the fluorescence excitation spectrum, it is found that for a Doppler-broadened system, EIT resonance cannot be explained as the result of quantum interference, unlike the case of a homogeneously broadened system. Instead, the macroscopic polarization interference plays an important role in determining the spectra of EIT and AT splitting, which can be explained within the same framework when being detected by the absorption spectra.We study the relationship between electromagnetically-induced transparency（EIT） and Autler–Townes（AT） splitting in a cascade three-level Doppler-broadened system. By comparing the absorption spectrum with the fluorescence excitation spectrum, it is found that for a Doppler-broadened system, EIT resonance cannot be explained as the result of quantum interference, unlike the case of a homogeneously broadened system. Instead, the macroscopic polarization interference plays an important role in determining the spectra of EIT and AT splitting, which can be explained within the same framework when being detected by the absorption spectra.

关 键 词：electromagnetically-induced transparency polarisation interference Autler–Townes splitting 

分 类 号：O441.3[理学—电磁学]