V-型原子相干介质中的光学双稳态  

Optical Bistability in V-Type Atomic Coherence Medium

作　　者：陈德海[1] 陈爱喜[1] 徐彦秋[1] 

机构地区：[1]华东交通大学基础科学学院,江西南昌330013

出　　处：《华东交通大学学报》2008年第4期88-91,共4页Journal of East China Jiaotong University

基　　金：国家重点基础研究发展计划资助项目(2005CB724508);江西省自然科学基金资助项目(2007GZW0819)

摘　　要：研究在一单向环形腔内的V-型三能级原子被一相干光场驱动的光学双稳态行为.单模光场同时与两条能级跃迁路径耦合,在这种情况下,两上能级衰变路径的相干性变得非常重要,这会使光学双稳态的阈值有很大的减小.同时也讨论了合作参数、能级宽度、失谐对光学双稳态的影响.The optical bistable behavior of V-type three-level atomic system in a unidirectional ring cavity driven by a coherent field is studied. A single mode laser field is applied to two transitions simultaneously. The interference between decay channels is very important. Studies show that atomic coherent effects could significantly decrease the optical bistability threshold. We also analyze the effect of the atomic cooperation parameter, the width between two upper levels, and the detuning on the optical bistability.

关 键 词：原子相干 光学双稳态 三能级原子 

分 类 号：O431.2[机械工程—光学工程]