Theoretical Study of Enhanced Plasmonic–Photonic Hybrid Cavity Modes in Reciprocal Plasmonic Metasurfaces
Theoretical Study of Enhanced Plasmonic–Photonic Hybrid Cavity Modes in Reciprocal Plasmonic Metasurfaces
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DOI：
10.1007/s11468-021-01456-z
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发表时间：
2021-06
期刊：
影响因子：
3
通讯作者：
Yanzeng Li;Micheal McLamb;Seran Park;D. Childers;G. Boreman;T. Hofmann
中科院分区：
文献类型：
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作者：
Yanzeng Li;Micheal McLamb;Seran Park;D. Childers;G. Boreman;T. Hofmann
提出了一种用于超颖表面构造的新配置，以展现潜在的多功能性，包括完美吸收、生物/化学传感和增强光-物质相互作用。这里讨论的互易等离子体超颖表面由通过电介质间隔件分开的互易几何形状的两个等离子体表面组成。与传统的超颖表面相比，这种简单的几何形状由于混合等离子体-光子腔而表现出增强的光学性能。所讨论的互反超颖表面设计进一步实现了有效的结构优化，并允许简单且可扩展的制造。利用数值和解析方法，证明了互易等离子体超颖表面的物理原理和潜在的应用。
A new configuration for metasurface construction is presented to exhibit potential multi-functionalities including perfect absorption, bio/chem sensing, and enhancement of light–matter interaction. The reciprocal plasmonic metasurfaces discussed here are composed of two plasmonic surfaces of reciprocal geometries separated by a dielectric spacer. Compared to conventional metasurfaces this simple geometry exhibits an enhanced optical performance due to the hybrid plasmonic–photonic cavity. The discussed reciprocal metasurface design further enables effective structural optimization and allows for a simple and scalable fabrication. The physical principle and potential applications of the reciprocal plasmonic metasurfaces are demonstrated using numerical and analytical approaches.