Comparison of electromagnetically induced transparency between silver, gold, and aluminum metamaterials at visible wavelengths
Comparison of electromagnetically induced transparency between silver, gold, and aluminum metamaterials at visible wavelengths
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DOI：
10.1364/oe.22.003526
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发表时间：
2014-02-10
期刊：
影响因子：
3.8
通讯作者：
Hane, Kazuhiro
中科院分区：
文献类型：
--
作者：
Hokari, Ryohei;Kanamori, Yoshiaki;Hane, Kazuhiro
在可见光波段，由偶极谐振器和四极谐振器组成的银、金和铝超材料表现出类似电磁感应透明（EIT）的效应。超材料的光学特性可以通过两个谐振腔之间的差距距离来控制。对于银、金和铝EIT超材料，分别在603和789 nm、654和834 nm以及462和693 nm之间的波长处观察到类似EIT的效应。在波长超过650 nm时，银超材料具有更好的EIT特征。另一方面，在短于650 nm左右的波长下，铝超材料显示出有希望的EIT样结果。(C)2014年美国光学学会
Electromagnetically induced transparency (EIT)-like effects in silver, gold, and aluminum metamaterials consisting of dipole resonators and quadrupole resonators were demonstrated at visible wavelengths. Optical characteristics of the metamaterials could be controlled by the gap distance between the two resonators. EIT-like effects were observed at wavelengths between 603 and 789 nm, 654 and 834 nm, and 462 and 693 nm for the silver, gold, and aluminum EIT metamaterials, respectively. At wavelengths longer than around 650 nm, the silver metamaterials had better EIT-like features. At wavelengths shorter than around 650 nm, on the other hand, the aluminum metamaterials showed promising EIT-like results. (C) 2014 Optical Society of America