Optical magnetic response in three-dimensional metamaterial of upright plasmonic meta-molecules
Optical magnetic response in three-dimensional metamaterial of upright plasmonic meta-molecules
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DOI：
10.1364/oe.19.012837
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发表时间：
2011-06-20
期刊：
影响因子：
3.8
通讯作者：
Tsai, Din Ping
中科院分区：
文献类型：
--
作者：
Chen, Wei Ting;Chen, Chen Jung;Tsai, Din Ping
我们报道了第一个三维光子超材料，一个竖立的U形等离子体金超分子阵列，它对垂直于阵列入射的光的磁场显示出深刻的响应。超材料是用双曝光电子束光刻工艺制造的。通过光学测量和有限元模拟研究表明，磁场完全依赖于等离子体共振模，它要么在竖立的U型超分子中心增强(16倍增强)，要么在竖立的U型超分子的两个叉处附近增强(4倍增强)。(C)2011年美国光学学会
We report the first three-dimensional photonic metamaterial, an array of erected U-shape plasmonic gold meta-molecules, that exhibits a profound response to the magnetic field of light incident normal to the array. The metamaterial was fabricated using a double exposure e-beam lithographic process. It was investigated by optical measurements and finite-element simulations, and showed that the magnetic field solely depends on the plasmonic resonance mode showing either enhanced in the centre of the erected U-shape meta-molecule (16 times enhancement) or enhanced around two prongs of erected U-shape meta-molecule (4 times enhancement). (C) 2011 Optical Society of America