Journal
ACS PHOTONICS
Volume 3, Issue 11, Pages 2096-2101Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acsphotonics.6b00533
Keywords
metamaterials; symmetry; polarimetry; circular dichroism; plasmonics
Categories
Funding
- Chinese Scholarship Council (CSC) [201406320105]
- National Natural Science Foundation of China [61322501, 61574127, 61275183]
- Top-Notch Young Talents Program of China
- Program for New Century Excellent Talents in University [NCET-12-0489]
- Fundamental Research Funds for the Central Universities
- Innovation Joint Research Center for Cyber-Physical-Society System
- Office of Naval Research [N00014-16-1-2049]
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In nature, the beetle Chrysina gloriosa derives its iridescence by selectively reflecting left-handed circularly polarized light only. Here, an optical analogue is suggested based on an ultrathin metamaterial, which is termed circular dichroism metamirror. A general method to design the circular dichroism metasmirror is presented under the framework of Jones calculus. It is analytically shown that the building block of such a metamirror needs to simultaneously break the n-fold rotational (n > 2) symmetry and mirror symmetry. By combining two layers of anisotropic metamaterial structures, a circular dichroism metamirror is designed in the mid-infrared region, which shows perfect reflectance for left-handed circularly polarized light without reversing its handedness, while it almost completely absorbs right-handed circularly polarized light. These findings offer a new methodology to implement novel photonic devices for a variety of applications, including polarimetric imaging, molecular spectroscopy, and quantum information processing.
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