High-order localized spoof surface plasmon resonances and experimental verifications.
High-order localized spoof surface plasmon resonances and experimental verifications.
复制标题
高阶局域欺骗表面等离子体共振及实验验证
DOI:
10.1038/srep09590
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发表时间:
2015-04-15
影响因子:
4.6
通讯作者:
Cui TJ
中科院分区:
文献类型:
--
作者:
Liao Z;Luo Y;Fernández-Domínguez AI;Shen X;Maier SA;Cui TJ
We theoretically demonstrated and experimentally verified high-order radial spoof localized surface plasmon resonances supported by textured metal particles. Through an effective medium theory and exact numerical simulations, we show the emergence of these geometrically-originated electromagnetic modes at microwave frequencies. The occurrence of high-order radial spoof plasmon resonances is experimentally verified in ultrathin disks. Their spectral and near-field properties are characterized experimentally, showing an excellent agreement with theoretical predictions. Our findings shed light into the nature of spoof localized surface plasmons and open the way to the design of broadband plasmonic devices able to operate at very different frequency regimes.
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