Large spatial shifts of reflected light beam off biaxial hyperbolic materials  

作　　者：沈加国 哈思内恩 宋浩元 周胜 付淑芳 王选章 王暄 张强 Jia-Guo Shen;Syed-ul-hasnain Bakhtiar;Hao-Yuan Song;Sheng Zhou;Shu-Fang Fu;Xuan-Zhang Wang;Xuan Wang;Qiang Zhang(Key Laboratory for Photonic and Electronic Bandgap Materials,Chinese Ministry of Education,and School of Physics and Electronic Engineering,Harbin Normal University,Harbin 150025,China;School of Integrated Circuits,Engineering Research Center for Functional Ceramics,Wuhan National Laboratory for Optoelectronics,Huazhong University of Science and Technology,Wuhan 430030,China;Key Laboratory of Engineering Dielectrics and Its Application,Ministry of Education,Harbin University of Science and Technology,Harbin 150080,China)

机构地区：[1]Key Laboratory for Photonic and Electronic Bandgap Materials,Chinese Ministry of Education,and School of Physics and Electronic Engineering,Harbin Normal University,Harbin 150025,China [2]School of Integrated Circuits,Engineering Research Center for Functional Ceramics,Wuhan National Laboratory for Optoelectronics,Huazhong University of Science and Technology,Wuhan 430030,China [3]Key Laboratory of Engineering Dielectrics and Its Application,Ministry of Education,Harbin University of Science and Technology,Harbin 150080,China

出　　处：《Chinese Physics B》2023年第11期465-471,共7页中国物理B(英文版)

基　　金：Project supported by the Natural Science Foundation of Heilongjiang Province, China (Grant No. LH2020A014);the Fund from the Education Commission of Heilongjiang Province, China (Grant No. 2020-KYYWF352);the Fund from the Key Laboratory of Engineering Dielectrics and Its Application (Harbin University of Science and Technology),Ministry of Education, China (Grant Nos. KFM202005 and KF20171110);the Harbin Normal University Postgraduate Innovative Research Project, Heilongjiang Province, China (Grant Nos. HSDSSCX2022-53 and HSDSSCX2022-49)。

摘　　要：Many optical systems that deal with polarization rely on the adaptability of controlling light reflection in the lithography-free nanostructure. In this study, we explore the Goos–H?nchen(GH) shift and Imbert–Fedorov(IF) shift in a biaxial hyperbolic film on a uniaxial hyperbolic substrate. This research statistically calculates and analyzes the GH shift and IF shift for the natural biaxial hyperbolic material(NBHM). We select the surface with the strongest anisotropy within the NBHM and obtain the complex beam-shift spectrum. By incorporating the NBHM film, the GH shift caused by a transversely magnetic incident-beam on the surface increases significantly compared with that on the uniaxial hyperbolic material. The maximum of GH shift can reach 86 λ0at about 841 cm-1when the thickness of NBHM is 90 nm, and the IF shift can approach 2.7 λ0for a circularly-polarized beam incident on a 1700-nm-thick NBHM. It is found that the spatialshift increases when a highly anisotropic hyperbolic polariton is excited in hyperbolic material, where the shift spectrum exhibits an oscillating behaviour accompanied with sharp shift peak(steep slope). This large spatial shift may provide an alternative strategy to develop novel sub-micrometric optical devices and biosensors.

关 键 词：Goos-Hanchen shift Imbert-Fedorov shift α-MoO_(3) 

分 类 号：O43[机械工程—光学工程]