中文版 | English
Title

Manipulation of Longitudinally Inhomogeneous Polarization States Empowered by All-Silicon Metasurfaces

Author
Corresponding AuthorZhang, Yating; Shen, Yun; Yao, Jianquan
Publication Years
2022-12-01
DOI
Source Title
ISSN
2195-1071
EISSN
2195-1071
Volume11Issue:4
Abstract
Polarization plays a key role in fundamental science, and manipulating the evolutionary trends of longitudinal polarization states can provide new implements for light-matter interaction. However, existing 3D optical devices can only manipulate the polarization conversion in a single transverse plane. Recently, methods to control polarization by cascading bulky optical systems are miniaturized using metasurfaces. Nevertheless, it is quite challenging to generate focused beams with vectorial properties for metasurfaces carrying inhomogeneous polarization profiles. Here, a single-layer all-silicon metasurface operating in the terahertz (THz) band is demonstrated to address all those aforementioned challenges in one go, and pencil-like beams with inhomogeneous polarization profiles can be imparted along the propagation direction. The introduction of a latitudinal polarization control factor representing the initial phase difference enables near-even manipulation of the evolutionary trend of the longitudinal polarization state according to the extended focal depth. By manipulating the topological charges within two orthogonal circularly polarized channels to accomplish coherent superposition, a focused vortex beam with vectorial properties can be generated in desired planes. Two functional demonstrations based on this approach are established experimentally, offering promising opportunities for structured light on meta-optics.
Keywords
URL[Source Record]
Indexed By
Language
English
SUSTech Authorship
Corresponding
Funding Project
[2021YFB2800703] ; [2017YFA0700202] ; [61675147] ; [61975146] ; [62075159] ; [62105240] ; [91838301] ; [JCYJ20170412154447469]
WOS Research Area
Materials Science ; Optics
WOS Subject
Materials Science, Multidisciplinary ; Optics
WOS Accession No
WOS:000894982400001
Publisher
Scopus EID
2-s2.0-85144041641
Data Source
Web of Science
Citation statistics
Cited Times [WOS]:4
Document TypeJournal Article
Identifierhttp://kc.sustech.edu.cn/handle/2SGJ60CL/417108
DepartmentDepartment of Electrical and Electronic Engineering
Affiliation
1.Tianjin Univ, Minis Educ, Sch Precis Instruments & Optoelect Engn, Key Lab Optoelect Informat Technol, 92 WeiJin Rd, Tianjin 300072, Peoples R China
2.Nanchang Univ, Sch Phys & Mat Sci, Nanchang 330031, Peoples R China
3.Chengdu Univ Informat Technol, Informat Mat & Device Applicat Key Lab Sichuan Pro, Chengdu 610225, Peoples R China
4.South Univ Sci & Technol China, Dept Elect & Elect Engn, Shenzhen 518055, Peoples R China
Corresponding Author AffilicationDepartment of Electrical and Electronic Engineering
Recommended Citation
GB/T 7714
Li, Hui,Duan, Shouxin,Zheng, Chenglong,et al. Manipulation of Longitudinally Inhomogeneous Polarization States Empowered by All-Silicon Metasurfaces[J]. Advanced Optical Materials,2022,11(4).
APA
Li, Hui.,Duan, Shouxin.,Zheng, Chenglong.,Li, Jie.,Xu, Hang.,...&Yao, Jianquan.(2022).Manipulation of Longitudinally Inhomogeneous Polarization States Empowered by All-Silicon Metasurfaces.Advanced Optical Materials,11(4).
MLA
Li, Hui,et al."Manipulation of Longitudinally Inhomogeneous Polarization States Empowered by All-Silicon Metasurfaces".Advanced Optical Materials 11.4(2022).
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