Breakdown of effective-medium theory by a photonic spin Hall effect

作     者：Shuaijie Yuan Xinxing Zhou Yu Chen Yuhan Zhong Lijuan Sheng Hao Hu Hongsheng Chen Ido Kaminer Xiao Lin 

作者机构：Key Laboratory of Low-Dimensional Quantum Structures and Quantum Control of Ministry of EducationSynergetic Innovation Center for Quantum Effects and ApplicationsSchool of Physics and ElectronicsHunan Normal UniversityChangsha410081China International Collaborative Laboratory of 2D Materials for Optoelectronics Science and TechnologyEngineering Technology Research Center for 2D Material Information Function Devices and Systems of Guangdong ProvinceInstitute of Microscale OptoelectronicsShenzhen UniversityShenzhen518060China Interdisciplinary Center for Quantum InformationState Key Laboratory of Extreme Photonics and InstrumentationZJU-Hangzhou Global Scientific and Technological Innovation CenterZhejiang UniversityHangzhou310027China International Joint Innovation CenterElectromagnetics Academy at Zhejiang UniversityZhejiang UniversityHaining314400China School of Electrical and Electronic EngineeringNanyang Technological UniversitySingapore639798Singapore Key Laboratory of Radar Imaging and Microwave PhotonicsMinistry of EducationCollege of Electronic and Information EngineeringNanjing University of Aeronautics and AstronauticsNanjing211106China Key Laboratory of Advanced Micro/Nano Electronic Devices&Smart Systems of ZhejiangJinhua Institute of Zhejiang UniversityZhejiang UniversityJinhua321099China Shaoxing Institute of Zhejiang UniversityZhejiang UniversityShaoxing312000China Department of Electrical EngineeringTechnion-Israel Institute of TechnologyHaifa32000Israel 

出 版 物：《Science China(Physics,Mechanics & Astronomy)》 (中国科学：物理学、力学、天文学（英文版）)

年 卷 期：2023年第66卷第11期

页      面：145-154页

核心收录：

学科分类：070207[理学-光学] 07[理学] 08[工学] 0803[工学-光学工程] 0702[理学-物理学] 

基　　金：the support partly from the National Natural Science Fund for Excellent Young Scientists Fund Program(Overseas)of China National Natural Science Foundation of China(Grant No.62175212) the National Natural Science Foundation of China(Grant Nos.11961141010,and 61975176) supported by the National Natural Science Foundation of China(Grant No.11604095) Zhejiang Provincial Natural Science Fund Key Project(Grant No.Z23F050009) Fundamental Research Funds for the Central Universities(Grant No.2021FZZX001-19) Zhejiang University Global Partnership Fund the support partly from the Key Research and Development Program of the Ministry of Science and Technology(Grant Nos.2022YFA1404704,2022YFA1404902,and 2022YFA1405200) the support from the Israel Science Foundation(Grant No.3334/19) the Israel Science Foundation(Grant No.830/19) the Training Program for Excellent Young Innovators of Changsha(Grant No.kq2107013) 

主　　题：photonic spin Hall effect effective-medium theory spin-orbit interaction of light 

摘      要：Effective-medium theory pertains to the theoretical modelling of homogenization,which aims to replace an inhomogeneous structure of subwavelength-scale constituents with a homogeneous effective *** effective-medium theory is fundamental to various realms,including electromagnetics and material science,since it can largely decrease the complexity in the exploration of light-matter interactions by providing simple acceptable ***,the effective-medium theory is thought to be applicable to any all-dielectric system with deep-subwavelength constituents,under the condition that the effective medium does not have a critical angle,at which the total internal reflection *** we reveal a fundamental breakdown of the effective-medium theory that can be applied in very general conditions:showing it for deep-subwavelength all-dielectric multilayers even without a critical *** finding relies on an exotic photonic spin Hall effect,which is shown to be ultrasensitive to the stacking order of deep-subwavelength dielectric layers,since the spin-orbit interaction of light is dependent on slight phase accumulations during the wave *** results indicate that the photonic spin Hall effect could provide a promising and powerful tool for measuring structural defects for all-dielectric systems even in the extreme nanometer scale.