典型文献
Phase regimes of parity-time-symmetric coupled-ring systems at exceptional points
文献摘要：
The optical coupled resonant system consisting of an integrated resonator with gain and a resonator with loss provides an excellent platform to create exceptional points(EPs)in non-Hermitian systems.Most previous studies have focused on the striking intensity feature of EPs,but its phase response is seldom investigated.In this work,we present a thorough study on the phase response of an EP system.Intriguingly,the phase response exhibits distinct behavior depending on the ordering of the ring resonators:when the input light in a bus waveguide is coupled directly or indirectly to the ring with a gain,the phase response is featured by nonmonotonic transition and 2n monotonic transition,respectively.We also prove that the newly identified phase features are theoretically guaranteed.These phase responses produce unique group delays that have never been found in other coupled resonant systems.The results deepen our understanding on EPs in non-Hermitian systems and are potentially useful for practical applications exploiting phase features.
文献关键词：
中图分类号：
作者姓名：
ZHUANG MA;XIAOYAN ZHOU;LIN ZHANG
作者机构：
Tianjin Key Laboratory of Integrated Opto-electronics Technologies and Devices,School of Precision Instruments and Opto-electronics Engineering,Tianjin University,Tianjin 300072,China;Peng Cheng Laboratory,Shenzhen 518038,China
文献出处：
引用格式：
[1]ZHUANG MA;XIAOYAN ZHOU;LIN ZHANG-.Phase regimes of parity-time-symmetric coupled-ring systems at exceptional points)[J].光子学研究（英文）,2022(10):2374-2379
A类：
B类：
Phase,regimes,parity,symmetric,coupled,systems,exceptional,points,optical,resonant,consisting,integrated,gain,loss,provides,excellent,platform,create,EPs,Hermitian,Most,previous,studies,have,focused,striking,intensity,but,phase,seldom,investigated,this,work,we,present,thorough,study,Intriguingly,exhibits,distinct,behavior,depending,ordering,resonators,when,input,light,bus,waveguide,indirectly,featured,by,nonmonotonic,transition,2n,respectively,We,also,prove,that,newly,identified,features,are,theoretically,guaranteed,These,responses,produce,unique,group,delays,never,been,found,other,results,deepen,our,understanding,potentially,useful,practical,applications,exploiting
AB值：
0.585678
相似文献
机标中图分类号，由域田数据科技根据网络公开资料自动分析生成，仅供学习研究参考。
