Anomalous Effects of Driving Field Linewidth on a One-Atom Dressed-State Laser  

作　　者：杨金金 胡响明 

机构地区：[1]Department of Physics, Huazhong Normal University, VCuhan 430079

出　　处：《Chinese Physics Letters》2007年第5期1256-1259,共4页中国物理快报（英文版）

基　　金：Supported by the National Natural Science Foundation of China under Grant Nos 60378008 and 10574052.

摘　　要：We examine the effects of driving field linewidth on a one-atom dressed state laser. Unexpectedly, the linewidth leads to anomalous effects on the cavity field. The mean photon number of the cavity field is raised or the normalized variance is reduced to a certain degree as the linewidth increases for an appropriate range of parameters. The responsible mechanism is attributed to the fluctuation-induced modification of the electromagnetic reservoir where the atom stays.We examine the effects of driving field linewidth on a one-atom dressed state laser. Unexpectedly, the linewidth leads to anomalous effects on the cavity field. The mean photon number of the cavity field is raised or the normalized variance is reduced to a certain degree as the linewidth increases for an appropriate range of parameters. The responsible mechanism is attributed to the fluctuation-induced modification of the electromagnetic reservoir where the atom stays.

关 键 词：SPONTANEOUS-EMISSION SINGLE-ATOM RESONANCE FLUORESCENCE OPTICALBISTABILITY CAVITY SUPPRESSION ABSORPTION INVERSION SPECTRUM 

分 类 号：O56[理学—原子与分子物理]