Guiding and focusing of electromagnetic fields with wedge plasmon polaritons
Guiding and focusing of electromagnetic fields with wedge plasmon polaritons
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DOI：
10.1103/physrevlett.100.023901
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发表时间：
2008-01-18
影响因子：
8.6
通讯作者：
Garcia-Vidal, F. J.
中科院分区：
文献类型：
--
作者：
Moreno, Esteban;Rodrigo, Sergio G.;Garcia-Vidal, F. J.
我们从理论上研究了金属楔在电信波长引导下的电磁模式。与其他亚波长引导结构相比，这些模式表现出优越的约束，同时显示出相似的传播损耗。结果表明，沿模传播方向逐渐改变楔形几何形状可以实现模聚焦。
We study theoretically electromagnetic modes guided by metallic wedges at telecom wavelengths. These modes are found to exhibit superior confinement while showing similar propagation loss as compared to other subwavelength guiding configurations. It is also shown that mode focusing can be realized by gradual modification of the wedge geometry along the mode propagation direction.