Tailoring mode interference in plasmon-induced transparency metamaterials

Tailoring mode interference in plasmon-induced transparency metamaterials
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等离子体诱导透明超材料中的剪裁模式干涉

DOI:
10.1088/1361-6463/aab6fb
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发表时间:
2018-04
影响因子:
3.4
通讯作者:
Zhang Weili
Zhang Weili
中科院分区:
物理与天体物理3区
文献类型:
--
作者:
Liu Meng;Yang Quanlong;Xu Quan;Chen Xieyu;Tian Zhen;Gu Jianqiang;Ouyang Chunmei;Zhang Xueqian;Han Jiaguang;Zhang Weili

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提出了一种在等离子体激元诱导透明(PIT)超材料中调整模式干涉效应的方法。通过在太赫兹(THz)频率下使用非对称结构配置引入额外的耦合模式,可以将公知的单透明窗口PIT切换到双透明窗口PIT。概念验证的亚波长结构的制造和实验特性。测量结果与模拟结果吻合较好,支持了理论分析。该研究为开发具有不同功能的亚波长器件提供了一种新的方法,如超慢群速度,纵向脉冲压缩和太赫兹区域的光存储,这些功能也可以扩展到其他光谱区域。
We proposed an approach to tailor the mode interference effect in plasmon-induced transparency (PIT) metamaterials. Through introducing an extra coupling mode using an asymmetric structure configuration at terahertz (THz) frequencies, the well-known single-transparency-window PIT can be switched to dual-transparency-window PIT. Proof-of-concept subwavelength structures were fabricated and experimentally characterized. The measured results are in good agreement with the simulations, and well support our theoretical analysis. The presented research delivers a novel approach toward developing subwavelength devices with varies functionalities, such as ultra-slow group velocities, longitudinal pulse compression and light storage in the THz regime, which can also be extended to other spectral regimes.
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影响因子: 3.8
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