Experimental study of the interaction between localized and propagating surface plasmons
Experimental study of the interaction between localized and propagating surface plasmons
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DOI：
10.1364/ol.34.000244
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发表时间：
2009-02-01
期刊：
影响因子：
3.6
通讯作者：
Crozier, Kenneth B.
中科院分区：
文献类型：
--
作者：
Chu, Yizhuo;Crozier, Kenneth B.
局域和传播的表面等离子体激元之间的相互作用的影响，在一个结构组成的二维周期性的金纳米粒子阵列，二氧化硅间隔，和金膜。通过改变金纳米粒子的尺寸和阵列周期，可以调整由该结构支撑的两种类型的表面等离子体的共振波长。在反射光谱中观察到共振位置的反交叉，表明局域化和传播表面等离子体之间的强耦合。(C)2009年美国光学学会
The interaction between localized and propagating surface plasmons is investigated in a structure consisting of a two-dimensional periodic gold nanoparticle array, an SiO2 spacer, and a gold film. The resonance wavelengths of the two types of surface plasmons supported by the structure are tailored by changing the gold nanaparticle size and the array period. An anticrossing of the resonance positions is observed in the reflection spectra, demonstrating the strong coupling between localized and propagating surface plasmons. (C) 2009 Optical Society of America