Cavity linewidth narrowing by means of electromagnetically induced transparency in Rb with a longitudinal magnetic field  

作　　者：陈昊楠 应康 段亚凡 钮月萍 龚尚庆 

机构地区：[1]Department of Physics, East China University of Science and Technology [2]Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences

出　　处：《Chinese Optics Letters》2014年第9期83-86,共4页中国光学快报（英文版）

基　　金：supported by the National Natural Science Foundation of China(Nos.91321101,11274112,61108028,and 61178031);the Fundamental Research Funds for the Central Universities(No.WM1313003)

摘　　要：We demonstrate a method for further reducing the cavity linewidth by the application of a small longitudinal magnetic field on the Rb cell. Because of the magnetic field multiple electromagnetically induced transparen- cies （EITs） are observed. The center EIT linewidth is measured as a function of the magnetic field. By utilizing the center EIT we narrow the cavity linewidth to 2 MHz which is half of the cavity linewidth without magnetic field.We demonstrate a method for further reducing the cavity linewidth by the application of a small longitudinal magnetic field on the Rb cell. Because of the magnetic field multiple electromagnetically induced transparen- cies （EITs） are observed. The center EIT linewidth is measured as a function of the magnetic field. By utilizing the center EIT we narrow the cavity linewidth to 2 MHz which is half of the cavity linewidth without magnetic field.

关 键 词：LINEWIDTH Quantum optics RUBIDIUM TRANSPARENCY 

分 类 号：O562[理学—原子与分子物理]