Bending-switchable terahertz metamaterial with a single layer based on laser-induced graphene
Abdul Jalal, Yan Dong, Bowen Deng, Muhammad Qasim, Mojtaba Moghaddasi, Ubaid Ur Rahman Qureshi, Zongyuan Wang, Xudong Wu, Chenjie Xiong, Bin Hu
Abstract
We propose a fast-printable and function-switchable metamaterial based on laser-induced graphene for terahertz (THz) wave modulation in the reflection mode.The design can modulate the linear polarization of the incoming wave fronts to its cross-polarization from 0.27 to 0.41 THz and linear polarization to circular polarization from 0.48 to 0.62 THz.The function of the device can also be switched from a polarization converter to an absorber by bending it with an angle of 57.Experimental results showed a good agreement with those of the simulation.The proposed polarization converter may find its application in THz polarization control systems and sensing.