N-型四能级系统的EIT和MOLLOW谱分析  

EIT and MOLLOW Spectrum in N-Type Four-Level System

作　　者：李晓莉[1,2] 孟旭东[3] 杨子才[1] 孙江[1] 

机构地区：[1]河北大学物理科学与技术学院,河北保定071002 [2]中国科学院半导体研究所,北京100038 [3]河北北方学院物理系,河北张家口075000

出　　处：《光谱学与光谱分析》2013年第3期590-594,共5页Spectroscopy and Spectral Analysis

基　　金：国家自然科学基金青年基金项目(10804025);河北省高等学校科学研究项目(2011114)资助

摘　　要：构建双耦合场作用下的N-型四能级系统,详细讨论系统的探测吸收特性随两个耦合场Rabi频率取不同值时的变化规律,得到EIT、Mollow和Autler-Townes双峰效应及其它们之间的相互转化规律。通过找出N-型四能级系统中的多个跃迁通道,将系统按跃迁通道拆分成多个子系统,不同的拆分方法实现了不同跃迁通道之间的量子干涉,从而使系统呈现出三种产生条件和物理本质不同的非线性效应。An N-type four level system where two coupling fields interact with two separate optical transitions was constructed in the present paper.By discussing the behaviors of probing field absorption profiles under the effect of different Rabi frequencies of two coupling fields,EIT,Mollow and Autler-Townes doublet can be seen and mutual transformation between them can be obtained.Multiple transition channels in the system were found and the results show that the system can be divided into several subsystems according to the transition channels.Quantum interference between different transition channels can be realized through different dividing methods,so three nonlinear effects with different generating conditions and physical nature can be seen in the system.

关 键 词：电磁诱导透明 MOLLOW谱 耦合场 N-型四能级系统 

分 类 号：O562.32[理学—原子与分子物理]