Work

Polarization tunable terahertz plasmon induced transparency in graphene ring-rod metamaterial

Year: 2019

Type: conference-paper

Abstract: A periodic two-dimensional metamaterial with plasmon induced transparency effect in terahertz region, composed of polyimide layer covered by a monolayer graphene ring-rod structure, is presented and numerically investigated. The structure shows a remarkable polarization-sensitive transparent window in terahertz band due to the interference phenomenon caused by mode coupling. The results demonstrate that the transparent window of plasmon induced transparency can be flexibly controlled by adjusting the Fermi level of graphene and the polarization angle of incident terahertz wave, which are verified by numerical simulation and dipole-dipole interaction model. Moreover, the maximum group delay time corresponding to the polarization angle at 0 degree is 136.57 fs, exhibiting obvious slow light characteristics. The proposed metamaterial may give rise to practical application in terahertz switches and slow light devices.

Source: Tenth International Conference on Information Optics and Photonics

DOI: 10.1117/12.2550115

Authors: xiaoqiang jiang, Kai Wang, WenHui Fan

Institutions: Xi'an Institute of Optics and Precision Mechanics, University of Chinese Academy of Sciences

Language: English

Topic: Metamaterials and Metasurfaces Applications

Subfield: Electronic, Optical and Magnetic Materials

Field: Materials Science

Domain: Physical Sciences

Open Access status: green

OpenAlex ID: W2995310907

FWCI: 1.204

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Cited by: 1

Related to: 10