Influence of symmetry breaking degrees on surface plasmon polaritons propagation in branched silver nanowire waveguides.

Influence of symmetry breaking degrees on surface plasmon polaritons propagation in branched silver nanowire waveguides.
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对称破缺度对分支银纳米线波导中表面等离子体激元传播的影响

DOI:
10.1038/srep34418
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发表时间:
2016-09-28
期刊:
影响因子:
4.6
通讯作者:
Wang W
Wang W
中科院分区:
综合性期刊3区
文献类型:
--
作者:
Hua J;Wu F;Xu Z;Wang W

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基于表面等离子激元(SPPs)的纳米线(NW)波导在集成纳米光子电路和器件中具有广阔的应用前景。纳米光子器件在特殊功能下的传输控制对其性能的提高具有重要意义。在这项工作中,我们报告了对称破缺度对手工制造的支链银NW结构中SPPs传播行为的影响。对称破缺程度可以通过主NW和分支NW之间的夹角来调节,这在很大程度上影响了结和主NW端的发射。我们的研究结果说明了对称性破缺程度对纳米光子在nw波导中传播的重要性,这对设计未来的纳米光子电路至关重要。
Surface plasmon polaritons (SPPs)-based nanowire (NW) waveguides demonstrate promising potentials in the integrated nanophotonic circuits and devices. The realization of controlling SPPs propagation in NWs is significant for the performance of nanophotonic devices when employed for special function. In this work, we report the effect of symmetry breaking degrees on SPPs propagation behavior in manually fabricated branched silver NW structures. The symmetry breaking degree can be tuned by the angle between main NW and branch NW, which influences the emissions at the junction and the main NW terminal in a large extent. Our results illustrate the significance of symmetry breaking degree on SPPs propagation in NW-based waveguides which is crucial for designing the future nanophotonic circuits.
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