Novel silicon bipodal cylinders with controlled resonances and their use as beam steering metasurfaces.

ABSTRACT: Metasurfaces have paved the way for high performance wavefront shaping and beam steering applications. Phase-gradient metasurfaces (PGM) are of high importance owing to the powerful and relatively systematic tool they offer for manipulating electromagnetic wave fronts and achieving various functionalities. Herein, we numerically present a novel unit cell known as bipodal cylinders (BPC), made of Silicon (Si) and placed on a Silicon dioxide (SiO₂) substrate to be compatible with CMOS fabrication techniques and to avoid field leakage into a high index substrate. Owing to its geometrical structure, the BPC structure provides a promising unit cell for electromagnetic wave manipulation. We show that BPC offers a way to shift the electric dipole mode to a frequency higher than that of

SUBMITTER: Fawzy SM 

PROVIDER: S-EPMC8249426 | biostudies-literature | 2021 Jul

REPOSITORIES: biostudies-literature