Strong Plasmon-Exciton-Plasmon Multimode Couplings in Three-Layered Ag-J-Aggregates-Ag Nanostructures

被引：27
|
作者：
Yang, Hao [1 ]
Yao, Jie [1 ]
Wu, Xue-Wei [2 ,3 ]
Wu, Da-Jian [1 ]
Liu, Xiao-Jun [2 ,3 ]
机构：
[1] Nanjing Normal Univ, Sch Phys & Technol, Jiangsu Key Lab Optoelect Technol, Nanjing 210023, Jiangsu, Peoples R China
[2] Nanjing Univ, Sch Phys, Nanjing 210093, Jiangsu, Peoples R China
[3] Nanjing Univ, Collaborat Innovat Ctr Adv Microstruct, Nanjing 210093, Jiangsu, Peoples R China
来源：
JOURNAL OF PHYSICAL CHEMISTRY C | 2017年 / 121卷 / 45期
基金：
中国国家自然科学基金;
关键词：
MOLECULAR EXCITONS; POLARITONS; COMPLEXES; MODES; FIELD;
D O I：
10.1021/acs.jpcc.7b07596
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Plasmon-exciton-plasmon (PEP) couplings in Ag-J-aggregates-Ag (AJA) nanostructures are investigated using the finite element method. By adjusting the geometry and the incident angle, strong couplings among localized surface plasmon resonances (LSPRs), exciton resonances, and surface plasmon polaritons (SPPs) were achieved in the AJA nanostructure, resulting in three new hybridized plexcimon modes. We carefully analyzed the SPP-exciton-LSPR coupling behaviors in the AJA nanostructure based on classic oscillator models and obtained the weighting efficiencies of original modes in three plexcimon modes. It is further found that the PEP couplings in the AJA nanostructure could be modulated by varying the original LSPR mode.
引用
收藏
页码：25455 / 25462
页数：8
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