Independent polarization and phase control in liquid crystal programmable THz metasurfaces
Year: 2025
Type: article
Abstract: Polarization control is fundamental to the development of terahertz (THz) technologies, with wide-ranging implications for sensing, communication, and secure information systems. However, the dynamic-generation of vector beams via pixel-level polarization modulation in planar devices remains elusive. Here, we report a programmable THz metasurface comprising electrically addressable pixels, each acting as a tunable polarization converter. We experimentally demonstrate an 8×8 array capable of generating arbitrary, spatially varying polarization states. The metasurface also supports predesigned pixel-level phase profiles without compromising dynamic polarization control. This approach establishes a flexible platform for next-generation THz systems, with potential applications in polarization-sensitive imaging, high-capacity communication, and stealth technologies.
Source: Optica
Authors: Sheng Wang, Wei Zhu, Hangbing Guo, Benwen Chen, Fangyu Wan, Hengyu Cui, Jingbo Wu, Caihong Zhang, Kebin Fan, Huabing Wang, Biaobing Jin, Jian Chen, Peiheng Wu
Language: English
Field: Materials Science
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $3,208
OpenAlex ID: W4415518917