Polarization-independent nonamer terahertz metamaterial

Liu Yan; Fan Fei; Bai Jinjun; Wang Xianghui; Chang Shengjiang

doi:10.3788/IRLA201746.1221002

A nonamer metamaterial composed of nine split ring resonators with different orientations was experimentally and numerically researched in terahertz band. The nine split rings were arranged spirally. From the first split ring, the subsequent split rings were rotated anti-clockwise by 40. Generally, the split ring resonator was polarization-dependent. It was found that split rings oligomer, which can produce multiple resonance modes, was polarization-independent owing to the near-field energy coupling. The split rings oligomer composed of polarization-dependent resonators exhibited a polarization-independent effect, which enriched the design idea of traditionally uncoupled metamaterial composed of disperse resonators, and induced a new path for terahertz functional devices, like optical switch, modulator, filter and so on.

Polarization-independent nonamer terahertz metamaterial

1. Key Laboratory of Opto-electronic Information Science and Technology of Ministry of Education,Tianjin Key Laboratory of Optoelectronic Sensor and Sensing Network Technology,Institute of Modern Optics,Nankai University,Tianjin 300071,China;

2. School of Electronics and Information Engineering,Tianjin Polytechnic University,Tianjin 300387,China

Received Date: 2017-04-10

Rev Recd Date: 2017-05-20

Publish Date: 2017-12-25

Key words:

Abstract: A nonamer metamaterial composed of nine split ring resonators with different orientations was experimentally and numerically researched in terahertz band. The nine split rings were arranged spirally. From the first split ring, the subsequent split rings were rotated anti-clockwise by 40. Generally, the split ring resonator was polarization-dependent. It was found that split rings oligomer, which can produce multiple resonance modes, was polarization-independent owing to the near-field energy coupling. The split rings oligomer composed of polarization-dependent resonators exhibited a polarization-independent effect, which enriched the design idea of traditionally uncoupled metamaterial composed of disperse resonators, and induced a new path for terahertz functional devices, like optical switch, modulator, filter and so on.

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Reference (14)

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Polarization-independent nonamer terahertz metamaterial

doi: 10.3788/IRLA201746.1221002

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