Broadband terahertz wavefront modulation based on flexible metasurface

• Published in: Optics communications Vol. 508; p. 127840
• Main Authors: Ren, Haiyang, Yue, Weiwei, Liu, Jian, Liu, Liyuan, Geng, Zhaoxin
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 01.04.2022
• Subjects: Anomalous refraction; Broadband effect; Flexible metasurface; Phase gradient; THz wave; Vortex beam; Phase gradient; Vortex beam; Flexible metasurface; Broadband effect; THz wave; Anomalous refraction

To broaden the range of working frequency of the metasurface in the THz band, a flexible metasurface based on the parylene-C film was proposed. The metasurface is composed of elliptical split-ring units with different opening gaps. Elliptical split-ring units with different arrangement can work as 2...