Journal
JOURNAL OF THE OPTICAL SOCIETY OF AMERICA A-OPTICS IMAGE SCIENCE AND VISION
Volume 30, Issue 9, Pages 1714-1718Publisher
OPTICAL SOC AMER
DOI: 10.1364/JOSAA.30.001714
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Funding
- Natural Science Foundation of China (NSFC) [11104094, 61007019, 91123035]
- National Basic Research Program of China (973 Program) [2011CB013003]
- Fundamental Research Funds for the Central Universities (HUST) [2011TS060, 2012QN092]
- Fok Ying Tung Education Foundation [132034]
- Open Fund of The State Key Laboratory of High Performance Complex Manufacturing [KL12-9]
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We studied numerically the transmission properties of a kind of layer-by-layer nonchiral metamaterial. Simulation results show that under certain off-normal incidence, giant circular polarization conversion occurs for both the right and left circularly polarized waves with a roughly 1 GHz operation band. Meanwhile, the copolarization transmissions are almost suppressed to zero, leading to the high purity circular polarization transformation. This phenomenon of giant circular polarization conversion is assumed to suffer from the strong magnetic response, which is illustrated by the surface current distributions of the structure. Compared with chiral structures, this nonchiral structure is easier to design and fabricate and is expected to be used as a promising circular polarization transformer. (C) 2013 Optical Society of America
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