中文版 | English
Title

Strong coupling between longitudinal and U-shaped localized surface plasmon modes in rectangular grating-shaped gold nanostructures

Author
Corresponding AuthorWang,Xiaorui
Publication Years
2023
DOI
Source Title
EISSN
1934-2608
Volume17Issue:1
Abstract
Strong couplings between localized surface plasmon resonance (LSPR) modes and single quantum emitters have been intensively investigated recently, and meanwhile the coupling between different LSPR modes inside individual metallic nanoparticle is still rarely researched. Herein, the strong coupling is investigated for different LSPR modes inside individual rectangular-grating-shaped gold nanostructure composed of one main-cuboid and two side-Attached subcuboids. Original uncoupled LSPR modes are revealed to be longitudinal and U-shaped LSPRs. For the nanostructure with increased main-cuboid length, the dispersion curves of simulated dual-original LSPR scattering wavelengths and dual-coupled LSPR scattering wavelengths show typical strong coupling patterns featuring anti-crossing and large Rabi splitting of 598.1 meV. The strong coupling is considered to be caused by the overlap of longitudinal and U-shaped LSPR oscillation modes in the gold nanostructure. The extracted coupling strength is found in order of 1013 Hz and it increases with the LSPR overlap length. The spatial mode and time evolution of the coupled LSPR modes are also numerically investigated. The simulated results are well comprehended with the classical strong coupling model of oscillators, further confirming the coupling between the longitudinal and the U-shaped LSPRs. The experimental dark-field scattering spectrum shows the existence of U-shaped LSPR mode in the gold nanostructure.
Keywords
URL[Source Record]
Language
English
SUSTech Authorship
First ; Corresponding
Scopus EID
2-s2.0-85151751452
Data Source
Scopus
Citation statistics
Cited Times [WOS]:0
Document TypeJournal Article
Identifierhttp://kc.sustech.edu.cn/handle/2SGJ60CL/524253
DepartmentDepartment of Physics
理学院
Affiliation
1.Southern University of Science and Technology,College of Science,Department of Physics,Shenzhen,China
2.The University of Hong Kong,Department of Physics,Faculty of Science,Hong Kong,Hong Kong
3.Fudan University,School of Information Science and Technology,Department of Optical Science and Engineering,Shanghai,China
First Author AffilicationDepartment of Physics;  College of Science
Corresponding Author AffilicationDepartment of Physics;  College of Science
First Author's First AffilicationDepartment of Physics;  College of Science
Recommended Citation
GB/T 7714
Wang,Xiaorui,Xu,Shijie. Strong coupling between longitudinal and U-shaped localized surface plasmon modes in rectangular grating-shaped gold nanostructures[J]. Journal of Nanophotonics,2023,17(1).
APA
Wang,Xiaorui,&Xu,Shijie.(2023).Strong coupling between longitudinal and U-shaped localized surface plasmon modes in rectangular grating-shaped gold nanostructures.Journal of Nanophotonics,17(1).
MLA
Wang,Xiaorui,et al."Strong coupling between longitudinal and U-shaped localized surface plasmon modes in rectangular grating-shaped gold nanostructures".Journal of Nanophotonics 17.1(2023).
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Export to Excel
Export to Csv
Altmetrics Score
Google Scholar
Similar articles in Google Scholar
[Wang,Xiaorui]'s Articles
[Xu,Shijie]'s Articles
Baidu Scholar
Similar articles in Baidu Scholar
[Wang,Xiaorui]'s Articles
[Xu,Shijie]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Wang,Xiaorui]'s Articles
[Xu,Shijie]'s Articles
Terms of Use
No data!
Social Bookmark/Share
No comment.

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.