Design of optical anapole modes of all-dielectric nanoantennas for SERS applications

被引：0

作者：

Wang, Debao ^{[1
]}

Lv, Jingwei ^{[1
]}

Wang, Jianxin ^{[1
]}

Ren, Yanru ^{[1
]}

Yu, Ying ^{[1
]}

Li, Wei ^{[1
]}

Chu, Paul K. ^{[2
,3
]}

Liu, Chao ^{[1
]}

机构：

[1] Northeast Petr Univ, Sch Phys & Elect Engn, Daqing 163318, Peoples R China

[2] City Univ Hong Kong, Dept Phys, Dept Mat Sci & Engn, Kowloon, Tat Chee Ave, Hong Kong, Peoples R China

[3] City Univ Hong Kong, Dept Biomed Engn, Kowloon, Tat Chee Ave, Hong Kong, Peoples R China

来源：

APPLIED OPTICS | 2023年 / 62卷 / 20期

基金：

中国博士后科学基金;

关键词：

RAMAN-SCATTERING; FANO RESONANCES; EXCITATION;

D O I：

10.1364/AO.494145

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

To obtain large electric field enhancement while mitigating material losses, an all-dielectric nanoantenna com-posed of a heptamer and nanocubes is designed and analyzed. A numerical simulation by the finite element method reveals that the nanoantenna achieves the optical electric anapole modes, thereby significantly enhancing the cou-pling between different dielectrics to further improve the near-field enhancement and spontaneous radiation. Field enhancement factors |E/E0|2 of 3,563 and 5,395 (AM1 and AM2) anda Purcell factor of 3,872 are observed in the wavelength range between 350 and 800 nm. This nanoantenna has promising potential in applications involving surface-enhanced Raman scattering and nonlinearities due to its low cost and excellent compatibility. & COPY; 2023 Optica Publishing Group

引用

页码：5538 / 5546

页数：9

共 46 条

[1] Resonant and Scattering Properties of Tungsten Disulfide WS2 Nanoantennas
Ahmed, Hasan
Babicheva, Viktoriia E.
[J]. PHOTONIC AND PHONONIC PROPERTIES OF ENGINEERED NANOSTRUCTURES X, 2020, 11289
[2] Boosting Strong Coupling in a Hybrid WSe2 Monolayer-Anapole-Plasmon System
As'ham, Khalil
Al-Ani, Ibrahim
Huang, Lujun
Miroshnichenko, Andrey E.
Hattori, Haroldo T.
[J]. ACS PHOTONICS, 2021, 8 (02) : 489 - 496
[3] Anapole-Enhanced Intrinsic Raman Scattering from Silicon Nanodisks
Baranov, Denis G.
Verre, Ruggero
Karpinski, Pawel
Kall, Mikael
[J]. ACS PHOTONICS, 2018, 5 (07): : 2730 - 2736
[4] Selective superinvisibility effect via compound anapole
Basharin, Alexey A.
Zanganeh, Esmaeel
Ospanova, Anar K.
Kapitanova, Polina
Evlyukhin, Andrey B.
[J]. PHYSICAL REVIEW B, 2023, 107 (15)
[5] Dielectric Metamaterials with Toroidal Dipolar Response
Basharin, Alexey A.
Kafesaki, Maria
Economou, Eleftherios N.
Soukoulis, Costas M.
Fedotov, Vassili A.
Savinov, Vassili
Zheludev, Nikolay I.
[J]. PHYSICAL REVIEW X, 2015, 5 (01):
[6] Biosensing Technologies: A Focus Review on Recent Advancements in Surface Plasmon Coupled Emission
Bhaskar, Seemesh
[J]. MICROMACHINES, 2023, 14 (03)
[7] Nd2O3-Ag Nanostructures for Plasmonic Biosensing, Antimicrobial, and Anticancer Applications
Bhaskar, Seemesh
Srinivasan, Venkatesh
Ramamurthy, Sai Sathish
[J]. ACS APPLIED NANO MATERIALS, 2023, 6 (02) : 1129 - 1145
[8] Metal-Dielectric Interfacial Engineering with Mesoporous Nano- Carbon Florets for 1000-Fold Fluorescence Enhancements: Smartphone-Enabled Visual Detection of Perindopril Erbumine at a Single-molecular Level
Bhaskar, Seemesh
Thacharakkal, Dipin
Ramamurthy, Sai Sathish
Subramaniam, Chandramouli
[J]. ACS SUSTAINABLE CHEMISTRY & ENGINEERING, 2023, 11 (01) : 78 - 91
[9] Synergistic coupling of titanium carbonitride nanocubes and graphene oxide for 800-fold fluorescence enhancements on smartphone based surface plasmon-coupled emission platform
Bhaskar, Seemesh
Ramamurthy, Sai Sathish
[J]. MATERIALS LETTERS, 2021, 298
[10] Dielectric nanoantennas to manipulate solid-state light emission
Bidault, Sebastien
Mivelle, Mathieu
Bonod, Nicolas
[J]. JOURNAL OF APPLIED PHYSICS, 2019, 126 (09)

← 1 2 3 4 5 →