期刊
NANO LETTERS
卷 11, 期 10, 页码 4400-4404出版社
AMER CHEMICAL SOC
DOI: 10.1021/nl202565e
关键词
Plasmonic nanostructures; nanophotonics; chirality; photonic metamaterials; optical activity
类别
资金
- Federal Ministry of Education and Research
- Thuringian State Government
- German Research Foundation
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.
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