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In-Depth Analysis of Plasmon Modes on Silver Nanotriangular Flakes with Plasmon Hybridization

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Abstract

Plasmons on silver flakes have attracted widespread attention due to their enormous electromagnetic enhancement. In particular, the plasmon cavity formed between various silver flakes and particles has become a hot topic today. Here, we apply the plasmon hybridization theory to analyze the plasmon modes of the single-layer surface of triangular silver flakes and the plasmon hybridization of the upper and lower surfaces of single or two triangular silver flakes. Through plasmon hybridization, we explain the complex plasmon modes and the dependence of resonance energy on geometric dimensions. Additionally, we also explore the hybridization of double triangular flakes at different distances, which can provide an in-depth understanding of the modes on the triangular flakes during the formation of plasmon cavities. This work provides new insights into the analysis of plasmon modes on triangular flakes and the plasmon cavities formed by triangular flakes.

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Data Availability

The data that support the findings of this study are available from the corresponding author upon reasonable request.

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Funding

This research was supported by the National Natural Science Foundation of China (NSFC) (Grant Nos. 12274054, 12074054).

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Authors and Affiliations

  1. School of Physics, Dalian University of Technology, Dalian, 116024, People’s Republic of China

    Guanglong You, Guodong Zhu & Yurui Fang

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  1. Guanglong You
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  2. Guodong Zhu
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  3. Yurui Fang
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Contributions

Y.F. directed the project. G.Y. did the theoretical deduction. G.Y. and G.Z. analyzed the data. G.Y. wrote the manuscript. All of the authors revised the manuscript.

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Correspondence to Yurui Fang.

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You, G., Zhu, G. & Fang, Y. In-Depth Analysis of Plasmon Modes on Silver Nanotriangular Flakes with Plasmon Hybridization. Plasmonics (2024). https://doi.org/10.1007/s11468-024-02335-z

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