Polarization and incident angle-dependent plasmonic coupling of Au@Ag nanoalloys

被引：7
|
作者：
Chen, Yichuan [1 ]
Lu, Zhu [2 ]
Cao, Yi [1 ]
Sun, Mengtao [1 ]
Dong, Jun [2 ]
机构：
[1] Univ Sci & Technol Beijing, Sch Math & Phys, Beijing, Peoples R China
[2] Xian Univ Posts & Telecommun, Sch Elect Engn, Xian, Peoples R China
来源：
CHINESE JOURNAL OF PHYSICS | 2022年 / 78卷
基金：
中国国家自然科学基金;
关键词：
Polarization; Incident angle-dependent; Plasmonic coupling; Au@Ag nanoalloys; NANOPARTICLES; CAVITY; SERS;
D O I：
10.1016/j.cjph.2022.05.009
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Localized surface plasmon resonance (LSPR) between noble metal nanoparticles (NPs) have been widely studied due to its efficient plasmonic enhancement. However, researches on plasmonic coupling between nanoalloy heterostructures are lacking. We successfully syntheized Au@Ag core-shell nanorods (NRs) via a facile seed-mediated method, and numerically simulated the polarization and incident angle-dependent plasmonic coupling between Au@Ag NP dimers. With different arrangements, the dimers exhibit various plasmonic coupling modes. Our result provides theoretical guidance for the LSPR effect in single-particle systems.
引用
收藏
页码：132 / 140
页数：9
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