Doppler展宽准Λ型四能级系统中传播效应的位相相关性(英文)  

Phase Correlation in Propagation Effect of a Doppler Broadening Quasi-Λ Type Four-level System

作　　者：刘中波[1] 樊锡君[1] 

机构地区：[1]山东师范大学物理与电子科学学院,济南250014

出　　处：《计算物理》2012年第6期881-890,共10页Chinese Journal of Computational Physics

基　　金：Supported by the National Natural Science Foundation of China(Grant No.11175105)

摘　　要：利用数值计算详细研究具有真空诱导相干的准Λ型四能级原子系统中探测场和驱动场之间的相对位相(ф)对传播效应的影响。结果表明:通过选择ф的取值可以获得更大的GWI和更长的存在无反转增益的传播距离,从而获得更高的LWI强度;Doppler展宽存在时,Doppler展宽宽度及探测场和驱动场传播方向对位相相关的GWI和LWI强度的空间演化有明显的调制作用。Influence of relative phase between probe and driving fields（ф） on propagation effect of a Doppler broadened quasi-Λ type four-level atomic system with spontaneously generated coherence（SGC） is numerically studied.It is shown that by choosing ф,we can obtain greater GWI and longer propagation distance where GWI exists and hence obtain higher LWI intensity.Doppler broadening width and propagation directions of probe and driving fields have considerable effect on phase-dependent spatial evolutions of GWI and LWI intensity.

关 键 词：四能级系统 传播 相对位相 Doppler展宽 无反转激光 

分 类 号：O431.2[机械工程—光学工程]