Controllable optical bistability in a Fabry-Pérot cavity with a nonlinear three-dimensional Dirac semimetal

袁红霞 ¹李佳雪 ¹马奇军 ¹田海山 ¹叶云洋 ²罗文昕 ²吴杏华 ³蒋乐勇¹

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作者信息

1. School of Physics and Electronics,Hunan Normal University,Changsha 410081,China
2. School of Intelligent Manufacturing and Electronic Engineering,Wenzhou University of Technology,Wenzhou 325035,China
3. Key Laboratory for Microstructural Functional Materials of Jiangxi Province,College of Science,Jiujiang University,Jiujiang 332005,China
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Abstract

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 com-munication 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.

Key words

optical bistability/Dirac semimetal/Fabry-Pérot cavity

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基金项目

Wenzhou Major Science and Technology Innovation Project:Research and Industrialization of Key Technologies for Intelligent D(ZG2023012)

Wenzhou Major Science and Technology Innovation PR Project(ZG2022011)

国家自然科学基金(62305254)

Scientific Research Fund of the Natural Science Foundation of Hunan Province(2022JJ30394)

Changsha Natural Science Foundation(kq2202236)

Changsha Natural Science Foundation(kq2202246)

Science and Technology Project of Jiangxi Provincial Education Department(GJJ190911)

出版年

2024

中国物理B(英文版)

中国物理学会和中国科学院物理研究所

中国物理B(英文版)

CSTPCDEI

影响因子：0.995

ISSN：1674-1056

参考文献量30

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