Chiral Metamaterial Composed of Three-Dimensional Plasmonic Nanostructures
Chiral Metamaterial Composed of Three-Dimensional Plasmonic Nanostructures
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DOI：
10.1021/nl202565e
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发表时间：
2011-10-01
期刊：
影响因子：
10.8
通讯作者：
Pertsch, Thomas
中科院分区：
文献类型：
--
作者：
Helgert, Christian;Pshenay-Severin, Ekaterina;Pertsch, Thomas
我们介绍了一种自上而下制造的超材料组成的三维，手性，等离子体纳米结构的可见光和近红外波长。基于组合的光谱和干涉表征，公开了根据琼斯矩阵的整个复杂透射响应。特别地，在传播通过纳米结构之后的光的偏振输出状态可以从针对任何激发配置的测量中解码。我们在实验上发现，在1.08 μ m左右的波长处，线偏振光的偏振方位角的旋转超过50度。这对应于一个特定的旋转，这是显着大于任何线性，被动和互惠媒体报道的日期。
We introduce a top-down fabricated metamaterial composed of three-dimensional, chiral, plasmonic nanostructures for visible and near-infrared wavelengths. Based on a combined spectroscopic and interferometric characterization, the entire complex transmission response in terms of a Jones matrix is disclosed. Particularly, the polarization output state of light after propagation through the nanostructures can be decoded from the measurements for any excitation configuration. We experimentally found a rotation of the polarization azimuth of linearly polarized light exceeding 50 degrees at wavelengths around 1.08 mu m. This corresponds to a specific rotation which is significantly larger than that of any linear, passive, and reciprocal medium reported to date.