Institute of Applied Physics, Abbe Center of Photonics, Friedrich-Schiller-Universität Jena , Max Wien Platz 1, 07743 Jena, Germany.
Nano Lett. 2011 Oct 12;11(10):4400-4. doi: 10.1021/nl202565e. Epub 2011 Sep 7.
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° at wavelengths around 1.08 μm. This corresponds to a specific rotation which is significantly larger than that of any linear, passive, and reciprocal medium reported to date.
我们介绍了一种自上而下制造的超材料，由用于可见光和近红外波长的三维手性等离子体纳米结构组成。基于光谱和干涉测量的综合特性分析，揭示了整个复杂的传输响应，以琼斯矩阵的形式表示。特别是，通过纳米结构后光的偏振输出状态可以从任何激发配置的测量中解码。我们实验发现，在 1.08μm 左右的波长处，线偏振光的偏振方位角旋转超过 50°。这对应于特定的旋转，明显大于迄今为止报道的任何线性、无源和互易介质的旋转。
