2018/06/05 by Michele Tamagnone, S. Capdevila, Tamagnone, Michele +17
Engineering · Materials Science · Physics and Astronomy · #Advanced Antenna and Metasurface Technologies #Applied Physics (physics.app-ph) #FOS: Physical sciences #Materials Science (cond-mat.mtrl-sci) #Metamaterials and Metasurfaces Applications #Optics (physics.optics) #Terahertz technology and applications #cond-mat.mtrl-sci #physics.app-ph #physics.optics
paper · pdf · doi:10.48550/arxiv.1806.02202
16 pages, 10 figures
openalex publication_date 2018/06/05 · arxiv created 2018/06/11 · arxiv updated 2018/06/12 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
We report a THz reflectarray metasurface which uses graphene as active element to achieve beam steering, shaping and broadband phase modulation. This is based on the creation of a voltage controlled reconfigurable phase hologram, which can impart different reflection angles and phases to an incident beam, replacing bulky and fragile rotating mirrors used for terahertz imaging. This can also find applications in other regions of the electromagnetic spectrum, paving the way to versatile optical devices including light radars, adaptive optics, electro-optical modulators and screens.