Plasmonic properties of concentric nanoshells
Plasmonic properties of concentric nanoshells
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DOI：
10.1021/nl049597x
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发表时间：
2004-07-01
期刊：
影响因子：
10.8
通讯作者：
Halas, NJ
中科院分区：
文献类型：
--
作者：
Radloff, C;Halas, NJ
等离子体性质的同心纳米壳，或“nanomatryushka”，进行了研究。的等离子体激元共振模式进行了分析，在等离子体激元杂交模型，其中新的共振发生由于与外金属壳的等离子体激元模式的内金属壳的杂交。实验实现的同心纳米壳的等离子体共振光谱分析的偶极和高阶多极杂化等离子体振子模式。观察到的杂化等离子体激元状态的分裂，这是由于纳米结构的有限尺寸的相位延迟效应的大小相关的不对称性。
The plasmonic properties of a concentric nanoshell, or "nanomatryushka", are investigated. The plasmon resonant modes are analyzed in terms of the plasmon hybridization model, where new resonances occur due to a hybridization of the plasmon modes of the inner metallic shell with those of the outer metallic shell. The plasmon resonant spectra of experimentally realized concentric nanoshells are analyzed in terms of dipolar and higher order multipolar hybridized plasmon modes. A size-dependent asymmetry in the splitting of the hybridized plasmon states is observed, which is related to phase retardation effects due to the nanostructure's finite size.