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Enhanced asymmetric transmission due to Fabry-Perot-like cavity

Enhanced asymmetric transmission due to Fabry-Perot-like cavity

Optics Express 22(10): 11707-11712

In this paper, a three layered metamaterial composed of a ring-chain structure sandwiched between two layers of twisted sub-wavelength cut-wire arrays is proposed and investigated. The designed structure is optimized such that asymmetric transmission with an extremely broad bandwidth, sharp rejection stop-band and high transmittance is achieved. The physical mechanism is accounted for that the metallic layers form the Fabry-Perot-like resonance cavity, enhancing the polarization conversion efficiency between two orthogonal linearly polarized waves. To some extent, this approach offers a way to strengthen asymmetric transmission effect.

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Accession: 052982221

Download citation: RISBibTeXText

PMID: 24921293

DOI: 10.1364/OE.22.011707

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