Simultaneous electromagnetically induced transparency and absorption in thermal atomic medium

作     者：梁尚清 徐云飞 林强 Shangqing Liang

作者机构：Institute of Optics Department of Physics Zhejiang University Center for Optics & Optoelectronics Research College of Science Zhejiang University of Technology 

出 版 物：《Chinese Optics Letters》 (中国光学快报（英文版）)

年 卷 期：2017年第15卷第9期

页      面：41-45页

核心收录：

学科分类：0808[工学-电气工程] 0809[工学-电子科学与技术（可授工学、理学学位）] 08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0702[理学-物理学] 

基　　金：supported by the National Natural Science Foundation of China(No.61475139) the National Basic Research Program of China(No.2013CB329501) the National High Technology Research and Development Program of China(No.2013AA063901) the Fundamental Research Funds for the Central Universities(No.2017FZA3005) 

主　　题：EIT EIA Simultaneous electromagnetically induced transparency and absorption in thermal atomic medium 

摘      要：A three-level lambda system driven by multicolor control, pump, and probe fields is investigated. The pump and probe fields are derived from the same laser with opposite propagating directions. Due to the Doppler effect, the zero group-velocity atoms face bichromatic fields, while other atoms face trichromatic fields. The atomic medium shows distinct characteristics and exhibits simultaneous electromagnetically induced transparency（EIT） and electromagnetically induced absorption（EIA） at two frequencies. EIT and EIA peaks have a fixed relationship with frequency, which is determined by the Doppler shifts.