摘要
针对喇曼场驱动下的四能级理论模型，讨论了光场的空间横向效应对无粒子数反转光放大增益的影响．计算结果表明：光场的空间横向效应使探测场的探测谱形状发生了变化；为了在样品池的出口处获得较高增益，汇聚透镜的最佳聚焦位置不应在样品池的中心，而应在样品池的出口附近．
We discussed transverse diffraction effects of probe and driving fields on the gain in the model of Raman driven four level atomic system. The calculated results showed that the spectrum of the probe field has different structure compared with that in plane wave approximation due to the transverse diffraction effects of light fields, and the optimum focal position of a focus lens for the maximum gain is in the vicinity of a sample cell.
出处
《物理学报》
SCIE
EI
CAS
CSCD
北大核心
1997年第12期2330-2343,共14页
Acta Physica Sinica
基金
国家自然科学基金
