微波场驱动下V型三能级原子的吸收和色散特性  

Absorption and dispersion of a V-type three-level atom driven by a microwave field

作　　者：曾志强[1,2] 王玉平[3] 

机构地区：[1]宜宾学院物理与电子工程学院,宜宾644000 [2]宜宾学院计算物理四川省高校重点实验室,宜宾644000 [3]宜宾学院矿业与安全工程学院,宜宾644000

出　　处：《原子与分子物理学报》2013年第6期965-970,共6页Journal of Atomic and Molecular Physics

基　　金：四川省教育厅科研项目(13ZB0208);宜宾学院青年基金(2010Q46)

摘　　要：当用微波场作用到V型三能级原子的两个激发态能级时,系统跃迁路径之间发生交叉耦合导致了量子相干效应.本文通过调节微波场的强度,实现了对原子吸收和色散性质的改变,并在共振频率处呈现零吸收高折射率现象.此外,微波场诱导的量子相干也可实现相对相位对探测光增益的控制.When the two excited levels in a V-type three-level atom are coupled by a microwave field, the quantum coherence is created by the interference between the atomic coupling transition channels. The probe absorption and dispersion properties can be modulated by adjusting the strength of microwave field, and the phenomenon of the high refractive index without absorption appears at the resonance. Be- sides, the relative phase control of probe gain can be achieved due to the quantum coherence induced by the microwave field.

关 键 词：量子光学 微波驱动 量子相干 零吸收高折射率 相位控制增益 

分 类 号：O431.2[机械工程—光学工程]