非共振条件下∧型三能级原子系统光学双稳态和多稳态的控制  

Controlling Optical Bistability and Multistability in a Three-level ∧-type Atomic System Under the Nonresonant Condition

作　　者：王志平[1] 

机构地区：[1]华东交通大学基础科学学院应用物理系,江西南昌330013

出　　处：《量子光学学报》2009年第2期133-138,共6页Journal of Quantum Optics

基　　金：江西省自然科学基金(2007GZW0819);江西省教育厅科研基金(2007191;GJJ09504);江西省井冈之星(2008DQ00400)

摘　　要：非共振条件下,我们理论研究了单向环形光腔中用一微波场驱动一个超精细低能态跃迁的∧型三能级原子系统光学双稳态和多稳态行为,结果表明原子介质双稳态的行为可以分别通过耦合场的强度和耦合场频率的失谐量控制,同时还发现微波场在实现多稳态过程中所起的重要作用。最后讨论了合作参数对光学多稳态阈值的影响。Under nonresonant condition, we theoretically investigate the optical bistability （OB） and muhistability （OM） behaviors in a three-level ∧-type system using a microwave field driving a hyperfine transition between two lower states inside the unidirectional ring cavity. The results show that the optical bistability behavior can be controlled by adjusting the intensity and the frequency detuning of the coupling field, respectively. It is also found that the microwave field plays an important role in achieving the multistability. The influence of the atomic cooperation parameter on the OM behavior is discussed at last.

关 键 词：双稳态 频率失谐量 多稳态 微波场 

分 类 号：O431[机械工程—光学工程]