Highly-dispersive transparency at optical frequencies in planar metamaterials based on two-bright-mode coupling
Highly-dispersive transparency at optical frequencies in planar metamaterials based on two-bright-mode coupling
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DOI：
10.1364/oe.19.021652
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发表时间：
2011-10-24
期刊：
影响因子：
3.8
通讯作者：
Jang, Won Ho
中科院分区：
文献类型：
--
作者：
Jin, Xing-Ri;Park, Jinwoo;Jang, Won Ho
利用一种由两条银条组成的平面超材料，我们从理论上证明了等离子体电磁诱导透明(EIT)在光学频率处的光谱响应。这两个银条作为亮模，受到入射波的强烈激发。基于两个亮模之间的微弱杂化，在我们的方案中出现了高度色散的等离子体EIT类光谱响应。此外，群指数比另一种利用亮模式和暗模式之间强耦合的方案更高。(C)2011年美国光学学会
Using a planar metamaterial, which consists of two silver strips, we theoretically demonstrate the plasmonic electromagnetically-induced transparency (EIT)-like spectral response at optical frequencies. The two silver strips serve as the bright modes, and are excited strongly by the incident wave. Based on the weak hybridization between the two bright modes, a highly-dispersive plasmonic EIT-like spectral response appears in our scheme. Moreover, the group index is higher than that of another scheme which utilizes the strong coupling between the bright and dark modes. (C) 2011 Optical Society of America