Journal
OPTICS EXPRESS
Volume 23, Issue 6, Pages 7053-7061Publisher
OPTICAL SOC AMER
DOI: 10.1364/OE.23.007053
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Funding
- National Natural Science Foundation of China [61275070, 61077068]
- Shanghai Natural Science Foundation [15ZR1415900]
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In this paper, a multi-layered metallic structure is proposed, which consists of split-ring resonators on both sides of two dielectric substrates. Numerical results reveal that the structure realizes a high magnitude of 0.94, three bands and broadband (more than 8 GHz) asymmetric transmission for linearly polarized wave. These properties are not observed in previous works. In order to better know these transmission properties, the Fabry-Perot like resonance model has been introduced to analyze the enhancement mechanism of asymmetric transmission in the multi-layered structure. The physical mechanism of linearly polarized wave conversion and asymmetric transmission based on electric fields and currents distribution is also analyzed in detail, respectively. (C) 2015 Optical Society of America
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