中文版 | English
Title

Ultrathin Suspended Chiral Metasurfaces for Enantiodiscrimination

Author
Corresponding AuthorCao, Tun; Liu, Yan Jun
Publication Years
2022-08-01
DOI
Source Title
ISSN
0935-9648
EISSN
1521-4095
Volume34
Abstract

Chiral metasurfaces can exhibit a strong circular dichroism, but it is limited by the complicated fabrication procedure and alignment errors. Here, a new type of self-aligned suspended chiral bilayer metasurface with only one-step electron beam lithography exposure is demonstrated. A significant optical chirality of 221 degrees mu m(-1) can be realized using suspended metasurfaces with a thickness of 100 nm. Furthermore, this study experimentally demonstrates that such a structure is capable of label-free discrimination of the chiral molecules at zeptomole level, exhibiting a much higher sensitivity (orders of magnitude) compared to the conventional circular dichroism spectroscopy. The fundamental principles for chiral sensing using molecules-metasurfaces interactions are explored. Benefiting from the giant chiroptical response, the proposed metadevice may offer promising applications for ultrathin circular polarizers, chiral molecular detectors, and asymmetry information processing.

Keywords
URL[Source Record]
Indexed By
SCI ; EI
Language
English
Important Publications
NI Journal Papers
SUSTech Authorship
Corresponding
Funding Project
National Natural Science Foundation of China[
WOS Research Area
Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
WOS Subject
Chemistry, Multidisciplinary ; Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied ; Physics, Condensed Matter
WOS Accession No
WOS:000842176900001
Publisher
EI Accession Number
20223412595685
EI Keywords
Circular dichroism spectroscopy ; Electron beam lithography ; Molecules ; Stereochemistry
ESI Classification Code
Light/Optics:741.1 ; Chemistry:801 ; Atomic and Molecular Physics:931.3
ESI Research Field
MATERIALS SCIENCE
Data Source
Web of Science
Citation statistics
Cited Times [WOS]:12
Document TypeJournal Article
Identifierhttp://kc.sustech.edu.cn/handle/2SGJ60CL/382563
DepartmentDepartment of Electrical and Electronic Engineering
Affiliation
1.Dalian Univ Technol, Dept Biomed Engn, Dalian 116024, Liaoning, Peoples R China
2.Southern Univ Sci & Technol, Dept Elect & Elect Engn, Shenzhen 518055, Peoples R China
3.Dalian Univ Technol, Sch Optoelect Engn & Instrumentat Sci, Dalian 116024, Peoples R China
4.Southern Univ Sci & Technol, Minist Educ, Key Lab Energy Convers & Storage Technol, Shenzhen 518055, Peoples R China
First Author AffilicationDepartment of Electrical and Electronic Engineering
Corresponding Author AffilicationDepartment of Electrical and Electronic Engineering;  Southern University of Science and Technology
Recommended Citation
GB/T 7714
Cen, Mengjia,Wang, Jiawei,Liu, Jianxun,et al. Ultrathin Suspended Chiral Metasurfaces for Enantiodiscrimination[J]. ADVANCED MATERIALS,2022,34.
APA
Cen, Mengjia.,Wang, Jiawei.,Liu, Jianxun.,He, Huilin.,Li, Ke.,...&Liu, Yan Jun.(2022).Ultrathin Suspended Chiral Metasurfaces for Enantiodiscrimination.ADVANCED MATERIALS,34.
MLA
Cen, Mengjia,et al."Ultrathin Suspended Chiral Metasurfaces for Enantiodiscrimination".ADVANCED MATERIALS 34(2022).
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