Terahertz phase modulator with graphene based metasurface

Xin Zhang; Dongshan Wei; Liangping Xia; Changbin Nie; Sijiang Wang; Hongliang Cui; Chunlei Du

doi:10.1117/12.2246817

25 October 2016 Terahertz phase modulator with graphene based metasurface

Xin Zhang, Dongshan Wei, Liangping Xia, Changbin Nie, Sijiang Wang, Hongliang Cui, Chunlei Du

Proceedings Volume 10158, Optical Communication, Optical Fiber Sensors, and Optical Memories for Big Data Storage; 101580T (2016) https://doi.org/10.1117/12.2246817
Event: International Symposium on Optoelectronic Technology and Application 2016, 2016, Beijing, China

Abstract

A terahertz phase modulator combined with single layered graphene and metal metasurface is proposed. With the high electron mobility of graphene, the modulator owns high speed modulation. With the strong interaction between the terahertz wave and the metal metasurface, the deep modulation is obtained in the structure only contains a single layered graphene. With the finite element method (FEM), the resonant in the structure with different polarization incidence is discussed and the parameter influence is analyzed. The maximum phase modulation is over 100 degree when the chemical potential of graphene is tuned from 0.1eV to 0.2eV.

Citation Download Citation

Xin Zhang, Dongshan Wei, Liangping Xia, Changbin Nie, Sijiang Wang, Hongliang Cui, and Chunlei Du "Terahertz phase modulator with graphene based metasurface", Proc. SPIE 10158, Optical Communication, Optical Fiber Sensors, and Optical Memories for Big Data Storage, 101580T (25 October 2016); https://doi.org/10.1117/12.2246817

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