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Proceedings Paper

Beam manipulation in a bilayered gradient metamaterial
Author(s): Quanchao Shi; Guangyu Nie; Zheng Zhu; Yang Liu; Jinhui Shi
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Paper Abstract

We propose an ultrathin planar metamaterial with an abrupt phase change along its surface for beam manipulation. The metamaterial is composed of bilayered asymmetrical split ring apertures (ASRAs) on either side of a dielectric substrate. The proposed metamaterial relies on eight variable ASRAs in a super cell to modulate the phase of transmitted wave. Efficient beam direction manipulation for cross-polarization transmission has been achieved and co-polarization transmission has been completely suppressed. Numerical simulation results show that the linearly polarized incident wave can deflect in a designated direction passing through the ultrathin metamaterial. An intensity efficiency of 70% and a deflection angle of 24° at 6.2GHz have been verified.

Paper Details

Date Published: 13 November 2014
PDF: 6 pages
Proc. SPIE 9278, Plasmonics, 927818 (13 November 2014); doi: 10.1117/12.2071454
Show Author Affiliations
Quanchao Shi, Harbin Engineering Univ. (China)
Guangyu Nie, Harbin Engineering Univ. (China)
Zheng Zhu, Harbin Engineering Univ. (China)
Yang Liu, Harbin Turbine Co., Ltd. (China)
Jinhui Shi, Harbin Engineering Univ. (China)

Published in SPIE Proceedings Vol. 9278:
Xing Zhu; Satoshi Kawata; David J. Bergman; Peter Nordlander; Francisco Javier García de Abajo, Editor(s)

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