摘要
Optical bistability(OB)is capable of rapidly and reversibly transforming a parameter of an optical signal from one state to another,and homologous nonlinear optical bistable devices are core components of high-speed all-optical communication and all-optical networks.In this paper,we theoretically investigated the controllable OB from a Fabry-Pérot(FP)cavity with a nonlinear three-dimensional Dirac semimetal(3D DSM)in the terahertz band.The OB stems from the third-order nonlinear bulk conductivity of the 3D DSM and the resonance mode has a positive effect on the generation of OB.This FP cavity structure is able to tune the OB because the transmittance and the reflectance can be modulated by the Fermi energy of the 3D DSM.We believe that this FP cavity configuration could provide a reference concept for realizing tunable bistable devices.
作者
袁红霞
李佳雪
马奇军
田海山
叶云洋
罗文昕
吴杏华
蒋乐勇
Hong-Xia Yuan;Jia-Xue Li;Qi-Jun Ma;Hai-Shan Tian;Yun-Yang Ye;Wen-Xin Luo;Xing-Hua Wu;Le-Yong Jiang(School of Physics and Electronics,Hunan Normal University,Changsha 410081,China;School of Intelligent Manufacturing and Electronic Engineering,Wenzhou University of Technology,Wenzhou 325035,China;Key Laboratory for Microstructural Functional Materials of Jiangxi Province,College of Science,Jiujiang University,Jiujiang 332005,China)
基金
Project supported by the Wenzhou Major Science and Technology Innovation Project:Research and Industrialization of Key Technologies for Intelligent Dynamic Ultrahigh Pressure Microfluidizer(Grant No.ZG2023012)
Wenzhou Major Science and Technology Innovation PR Project(Grant No.ZG2022011)
the National Natural Science Foundation of China(Grant No.62305254)
the Scientific Research Fund of the Natural Science Foundation of Hunan Province(Grant No.2022JJ30394)
the Changsha Natural Science Foundation(Grant Nos.kq2202236 and kq2202246)
the Science and Technology Project of Jiangxi Provincial Education Department(Grant No.GJJ190911).
