Triple-band tunable mid-infrared polarization converter based on graphene metasurface

Yang Jia; Yachen Gao; Tong Wu; Guan Wang; Jijuan Jiang

doi:10.1117/12.2637622

13 May 2022 Triple-band tunable mid-infrared polarization converter based on graphene metasurface

Yang Jia, Yachen Gao, Tong Wu, Guan Wang, Jijuan Jiang

Proceedings Volume 12248, Second International Conference on Sensors and Information Technology (ICSI 2022); 122480N (2022) https://doi.org/10.1117/12.2637622
Event: 2nd International Conference on Sensors and Information Technology (ICSI 2022), 2022, Nanjing, China

Abstract

A metasurface polarization conversion device is proposed by etching a specially shaped hole in the center of a single disk of graphene. The polarization converter can achieve the cross-polarization conversion function from x to y in the midinfrared band, with three polarization conversion rate peaks and a maximum conversion efficiency of more than 98%. By adjusting the chemical potential of graphene, the operating frequency can be dynamically adjusted to ensure that the conversion efficiency of two operating bands is above 90% and that of three operating bands is above 80%. Based on the above performance, the designed polarization conversion device can be potentially applied in the field of optical polarization control.

Citation Download Citation

Yang Jia, Yachen Gao, Tong Wu, Guan Wang, and Jijuan Jiang "Triple-band tunable mid-infrared polarization converter based on graphene metasurface", Proc. SPIE 12248, Second International Conference on Sensors and Information Technology (ICSI 2022), 122480N (13 May 2022); https://doi.org/10.1117/12.2637622

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