Year: 2025
Type: conference-paper
Abstract: To address the challenge of dynamic beam control in terahertz systems, this study proposes a tunable terahertz metasurface that integrates a geometric-phase enabled subwavelength unit cells with an electro-gated graphene layer. By dynamically tuning the graphene Fermi levels, such metasurfaces achieve switchable dual-beam splitting, ranging from two deflected beams to specular reflection. Full-wave simulations demonstrate optimizing the graphene-based metasurfaces enables high performance beam switching across varying Fermi levels. Such dynamic terahertz control mechanism provides broadband stability and real-time response, offering an efficient and reconfigurable solution for dynamic multi-beam manipulation in terahertz communications, high-resolution imaging, and intelligent sensing systems.
DOI: 10.1117/12.3076944
Author: Xiangyue Tan
Institution: Shanghai University
Language: English
Field: Materials Science
Domain: Physical Sciences
Open Access status: gold
OpenAlex ID: W4414145365