Journal
OPTICS EXPRESS
Volume 21, Issue 6, Pages 7439-7446Publisher
OPTICAL SOC AMER
DOI: 10.1364/OE.21.007439
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Funding
- National Natural Science Foundation of China [50936002, 11174234, 11204241]
- Northwestern Polytechnical University Foundation for Basic Research [JC201154]
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We propose a more efficient way to obtain much stronger polarization rotatory power by constructing a composite chiral metamaterial (CCMM) which is achieved via the combination of the cut-wire pairs (CWPs) and a purely chiral metamaterial (PCMM) composed of conjugated gammadion resonators. Owing to the strong coupling between the CWPs and PCMM, the polarization rotation in our CCMM is more gigantic than that of the PCMM. Furthermore, the CCMM proposed in this paper can function as a wide-angle 90 degrees polarization rotator for different substrate permittivity without needing to adjust its geometric parameters. Due to the unique properties, the CCMM may greatly benefit potential applications including designing a tunable 90 degrees-polarization rotator, microwave devices, telecommunication, and so on. (c) 2013 Optical Society of America
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