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Multispectral plasmon-induced transparency in triangle and nanorod(s) hybrid nanostructures

机译:多光谱等离子体激元在三角形和纳米棒杂化纳米结构中诱导的透明性

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摘要

We theoretically investigate the optical properties of a hybrid nanostructure consisting of one triangle and one nanorod. A plasmon-induced transparency (PIT) resonance appears in the transmission spectrum, which is ascribed to the induced multipole plasmon mode of the nanorod. Multispectral PIT resonances are observed, when two or more nanorods are put in proximity to the triangle. It is proved that the combined effects of the induced multipole plasmon mode of nanorods and the cavity resonant mode contribute to these PIT peaks. The tunability of PIT on the geometrical parameters is also presented.
机译:我们从理论上研究了由一个三角形和一个纳米棒组成的杂化纳米结构的光学性质。在透射光谱中出现了等离子体激元诱导的透明性(PIT)共振,这归因于纳米棒的诱导多极等离子体激元模式。当两个或多个纳米棒靠近三角形时,观察到多光谱PIT共振。证明了诱导的纳米棒的多极等离子体激元模式和腔共振模式的组合作用有助于这些PIT峰。还介绍了PIT在几何参数上的可调性。

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