三能级原子-光力腔耦合非互易传输研究  

Nonreciprocal transmission in a three-level atom-optomechanical cavity coupled system

作　　者：刘伟龙 张英俏 LIU Weilong;ZHANG Yingqiao(College of Science,Yanbian University,Yanji 133002,China)

机构地区：[1]延边大学理学院,吉林延吉133002

出　　处：《延边大学学报（自然科学版）》2024年第2期23-30,共8页Journal of Yanbian University（Natural Science Edition）

基　　金：国家自然科学基金(12064045)。

摘　　要：文章利用三能级原子与光力腔耦合系统中的光力相互作用,以及光与原子的相互作用,提出一种可实现非互易传输的方案,同时分析了有效光力耦合强度和原子–腔模耦合强度对非互易传输和隔离度的影响.结果表明:通过适当调节有效光力耦合强度和原子–腔模耦合强度,可以调控光学光子的传输特性,且隔离度的峰值和线宽随着2种耦合强度的增加而增加.研究结果可为光学环形器、隔离器等非互易器件的研发提供参考.A scheme for practical and nonreciprocal transmission is proposed using optomechanical and light-atom interaction in the coupling system of a three-level atom-optomechanical cavity,as well as the effects of the effective optomechanical coupling strength and atom-cavity-mode coupling strength on nonreciprocal transmission and isolation are analyzed.The results demonstrate that the transmission properties of optical photon can be modulated by properly adjusting the effective optomechanical coupling strength and atom-cavity-mode coupling strength.Moreover,the peak and line width of the isolation both increase with the increasing of the two coupling strengths.This scheme can provide useful references for the developments of nonreciprocal devices,such as,optical circulator,isolators,.

关 键 词：光力耦合 非互易传输 回音壁谐振器 隔离度 输入–输出关系 

分 类 号：O431[机械工程—光学工程]