High-order spoof localized surface plasmons supported on a complementary metallic spiral structure
作者： Zhen Gao , Fei Gao , Baile Zhang
DOI: 10.1038/SREP24447
关键词:
摘要: We experimentally demonstrate that multiple high-order spoof localized surface plasmons (spoof-LSPs) modes can be supported on a complementary metallic spiral structure, which were absent in the previously reported spoof-LSPs modes. Through exact numerical simulations and near-field imaging experiments, we directly observe these at microwave frequencies. also show higher-order exhibit larger frequency shifts caused by local environmental refractive index change than low-order Hence MSS may find potential applications as plasmonic sensor terahertz
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