A perturbation theory for plasmonic coupling of nanocavities

被引:0
|
作者
Xue, Xiaotian [1 ]
Fan, Yihang [1 ]
Wang, Weipeng [1 ]
Yang, Fei [1 ]
Fu, Wangyang [1 ]
Ling, Yunhan [1 ]
Shi, Ji [2 ]
Zhang, Zhengjun [1 ]
机构
[1] Tsinghua Univ, Sch Mat Sci & Engn, Key Lab Adv Mat, MOE, Beijing 10084, Peoples R China
[2] Tokyo Inst Technol, Sch Mat & Chem Technol, 2-12-1 Ookayama,Meguro Ku, Tokyo 1528500, Japan
基金
中国国家自然科学基金;
关键词
LIGHT TRANSMISSION; NANOHOLE ARRAYS; SPECTROSCOPY; GENERATION; RESONANCES; FILMS;
D O I
10.1063/5.0224976
中图分类号
O59 [应用物理学];
学科分类号
摘要
Plasmonic coupling among nanocavities creates a significant collective response of near-field enhancement, leading to numerous applications such as extraordinary optical transmittance, enhanced spectroscopy, energy harvesting, photo-enhanced catalysis, meta-lens, etc. We report here a perturbation theory based on the two-body interaction potential to clarify the plasmonic coupling between/among nanocavities. With this theory, we demonstrated that one can calculate the near-field distribution of a cluster of nanocavities and that the results are in agreement with simulations by the finite element method and those measured by a scanning near-field optical microscope. The perturbation theory offers an effective way in dealing with the plasmonic coupling behavior of nanocavities.
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页数:5
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