Mapping the near-field dynamics in plasmon-induced transparency
Mapping the near-field dynamics in plasmon-induced transparency
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DOI：
10.1103/physrevb.86.155148
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发表时间：
2012-10
影响因子：
3.7
通讯作者：
Ziliang Ye;Shuang Zhang;Yuang Wang;Yong-shik Park;T. Zentgraf;G. Bartal;Xiaobo Yin;Xiang Zhang-
中科院分区：
文献类型：
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作者：
Ziliang Ye;Shuang Zhang;Yuang Wang;Yong-shik Park;T. Zentgraf;G. Bartal;Xiaobo Yin;Xiang Zhang-
摘要：原子电磁感应透明（EIT）的光子模拟在宽吸收剖面内引入了透射的尖锐共振。这些结构的快速色散导致了关键的光子应用，如集成光延迟线。迄今为止，这种类似物的实验演示依赖于远场光谱的测量。在这里，我们提出了等离子体诱导透明（PIT）的近场光学研究，这是一种用亚波长大小的等离子体谐振器模拟EIT中亮元素和暗元素的光子模拟。在数值分析的支持下，不同波长下的光学近场分布揭示了亮、暗耦合等离子体谐振腔之间的干涉动力学。
Abstract : The photonic analog of atomic electromagnetically induced transparency (EIT) introduces a sharp resonance in transmission within a broad absorption profile. The rapid dispersion of these structures leads to critical photonic applications such as integrated optical delay lines. To date, experimental demonstrations of such analogs have relied on the measurement of the far-field spectrum. Here we present a near-field optical study of plasmon-induced transparency (PIT), a photonic analog with subwavelength-sized plasmonic resonators mimicking the bright and dark elements in EIT. Supported by numerical analyses, the optical near-field distributions at various wavelengths reveal the interference dynamics between the coupled bright and dark plasmonic resonators.