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

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

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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.

optical bistabilityDirac semimetalFabry-Pérot cavity

袁红霞、李佳雪、马奇军、田海山、叶云洋、罗文昕、吴杏华、蒋乐勇

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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

Wenzhou Major Science and Technology Innovation Project:Research and Industrialization of Key Technologies for Intelligent DWenzhou Major Science and Technology Innovation PR Project国家自然科学基金Scientific Research Fund of the Natural Science Foundation of Hunan ProvinceChangsha Natural Science FoundationChangsha Natural Science FoundationScience and Technology Project of Jiangxi Provincial Education Department

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2024

10.1088/1674-1056/acfdfe

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
年,卷(期)：2024.33(3)
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